{"product_id":"freesky-alaska-pro-m-520","title":"Freesky Alaska Pro M-520","description":"\u003cstyle\u003e\n.fs{--ink:#111318;--sub:#555b64;--faint:#878d96;--line:#e6e8ec;--card:#fbfbfc;--accent:#c8102e;\n--good:#0a7d3f;--warn:#b3261e;--amber:#8a6100;--r:16px;--r-lg:20px;\nfont-family:inherit;color:var(--ink);line-height:1.58;max-width:var(--page-width,1200px);\nmargin:0 auto;padding-inline:clamp(.5rem,2vw,1rem);font-variant-numeric:tabular-nums;}\n.fs *{box-sizing:border-box;}\n.fs h2{font-size:clamp(1.45rem,1.1rem + 1.5vw,2rem);font-weight:800;letter-spacing:-.025em;\nmargin:3.25rem 0 .9rem;text-wrap:balance;}\n.fs h3{font-size:1.12rem;font-weight:700;margin:0 0 .5rem;text-wrap:balance;}\n.fs p{text-wrap:pretty;}\n.fs__lede{color:var(--sub);margin:0 0 1.1rem;max-width:64ch;}\n.fs-ans{margin:0 0 1.75rem;padding:1.35rem 1.6rem;border:1px solid var(--line);\nborder-left:4px solid var(--accent);border-radius:var(--r);background:var(--card);}\n.fs-ans 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1.6rem;background:var(--card);}\n.fs-close p{margin:0;font-size:1.04rem;}\n.fs-measured{margin:2rem 0;padding:1.3rem 1.5rem;border:1px solid var(--line);\nborder-left:4px solid var(--good);border-radius:var(--r);background:#fbfdfb;}\n.fs-measured h3{font-size:.74rem;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:var(--good);margin:0 0 .45rem;}\n.fs-measured p{margin:0 0 .55rem;}\n.fs-measured p:last-child{margin-bottom:0;}\n.fs-mesh{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:.7rem;padding:0;margin:1rem 0 0;}\n.fs-mesh a{display:block;border:1px solid var(--line);border-radius:var(--r);padding:.85rem 1.05rem;\ntext-decoration:none;color:var(--ink);font-weight:600;font-size:.94rem;}\n.fs-bib{margin:1rem 0 0;padding-left:1.35rem;}\n.fs-bib li{margin:.5rem 0;color:var(--sub);font-size:.93rem;}\n.fs-verify{margin:2.25rem 0 0;padding:1.15rem 1.4rem;border:1px dashed var(--line);border-radius:var(--r);font-size:.89rem;color:var(--sub);}\n.fs-verify li{margin:.4rem 0;}\n@media(max-width:820px){\n.fs-feat,.fs-feat--flip{grid-template-columns:1fr;gap:1.15rem;padding:1.7rem 0;}\n.fs-feat--flip .fs-feat__media{order:0;}\n.fs-fit,.fs-led{grid-template-columns:1fr;}}\n\u003c\/style\u003e\n\u003cdiv class=\"fs\"\u003e\n\u003cdiv class=\"fs-ans\"\u003e\n\u003cspan class=\"k\"\u003eQuick answer\u003c\/span\u003e\u003cp\u003eRange is the whole argument here: 45Ah split across an 18Ah and a 27Ah pack, rated 98–175 miles — the longest of any single-motor Freesky. The Alaska Pro M-520 pairs that with a 4,500W peak motor at 170 N·m, 40 mph, and a 90 lb EMTB frame with the tallest fit in the range at 6'8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"fs-stats\"\u003e\n\u003cli\u003e\n\u003cb\u003e4,500W\u003c\/b\u003e\u003cspan\u003ePeak power\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e170N·m\u003c\/b\u003e\u003cspan\u003eTorque\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e45Ah\u003c\/b\u003e\u003cspan\u003eBattery\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e40 mph\u003c\/b\u003e\u003cspan\u003eMfr. top speed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e98–175 mi\u003c\/b\u003e\u003cspan\u003eMfr. range\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"fs-note\"\u003eEvery figure above is Freesky's own published specification for the Alaska Pro M-520, read from \u003cspan class=\"fs-addr\"\u003ewww.freeskycycle.com\/products\/alaska-pro-m-520\u003c\/span\u003e on 2026-08-24. Manufacturer claims, not Redtail test results — we label them that way rather than dress them up.\u003c\/p\u003e\n\u003ch2\u003ePrice and availability\u003c\/h2\u003e\n\u003cdiv class=\"fs-trust\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePrice matched\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003e$1,899\u003c\/b\u003e against a $2,649 list price. Matched to Freesky in USD and re-checked every day, so you are never paying more here than at the manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eStock matched\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003e4 of 4\u003c\/b\u003e colourways can ship today — Black, Blue-gray, Green, Camouflage. We mirror Freesky's live availability, so a colour you can add to the cart is a colour that exists.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSold and supported by Redtail\u003c\/h3\u003e\n\u003cp\u003eFree shipping on every electric bike within the contiguous United States (lower 48). Redtail is the seller of record, and warranty claims come to us — not to a factory inbox.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWho the Alaska Pro M-520 is for\u003c\/h2\u003e\n\u003cdiv class=\"fs-fit\"\u003e\n\u003cdiv class=\"fs-fit--yes\"\u003e\n\u003ch3\u003eBuy it if\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuinely long days. 98 miles at the pessimistic end is more than most riders will use in a weekend\u003c\/li\u003e\n\u003cli\u003eTall riders — Freesky quotes 5'6\"–6'8\", the highest ceiling in the range, on a 350 mm seatpost\u003c\/li\u003e\n\u003cli\u003eRiders who want one strong motor rather than two: 4,500W and 170 N·m is the most powerful single motor Freesky makes\u003c\/li\u003e\n\u003cli\u003eAnyone who wants a spare pack built in rather than bought later\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fs-fit--no\"\u003e\n\u003ch3\u003eSkip it if\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou are under 5'6\". This is the only Freesky whose fit range starts that high\u003c\/li\u003e\n\u003cli\u003eYou want every cell covered by a published certificate — only the 18Ah pack has one\u003c\/li\u003e\n\u003cli\u003eYou want dual-motor traction on loose ground\u003c\/li\u003e\n\u003cli\u003eYou need road-legal. 40 mph is twelve past the Class 3 ceiling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eThe Alaska Pro M-520 in detail\u003c\/h2\u003e\n\u003csection class=\"fs-feat\"\u003e\n\u003cdiv class=\"fs-feat__media\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/FREESKY-Alaska-Pro-Black-2_5b2e2ade-9fa3-4c23-8d9f-512f479ae241.png?v=1787562825\" alt=\"Freesky Alaska Pro M-520 — Two packs, 45Ah, 98–175 miles\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"fs-feat__txt\"\u003e\n\u003cspan class=\"fs-feat__k\"\u003eRange\u003c\/span\u003e\u003ch3\u003eTwo packs, 45Ah, 98–175 miles\u003c\/h3\u003e\n\u003cp\u003eFreesky splits the capacity across an 18Ah and a 27Ah pack for 45Ah total, rated 98–175 miles and charged in 6–8 hours. The architecture is the interesting part: two packs means you can charge one while riding the other, and a failure in one does not strand the bike. It is the most useful thing on this spec sheet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fs-feat fs-feat--flip\"\u003e\n\u003cdiv class=\"fs-feat__media\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/AlaskaProM-520_3.jpg?v=1787562831\" alt=\"Freesky Alaska Pro M-520 — 4,500W peak, 170 N·m, one wheel\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"fs-feat__txt\"\u003e\n\u003cspan class=\"fs-feat__k\"\u003ePower\u003c\/span\u003e\u003ch3\u003e4,500W peak, 170 N·m, one wheel\u003c\/h3\u003e\n\u003cp\u003eThe strongest single motor Freesky builds — more peak power than either 4,000W dual-motor bike, in one hub, at 170 N·m. Freesky rates it at 40 mph. Single-motor means less to service and no front-hub weight; it also means one contact patch doing the work when the ground is loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fs-feat\"\u003e\n\u003cdiv class=\"fs-feat__media\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/AlaskaProM-520_1.jpg?v=1787562837\" alt=\"Freesky Alaska Pro M-520 — What is covered, precisely\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"fs-feat__txt\"\u003e\n\u003cspan class=\"fs-feat__k\"\u003eCertification\u003c\/span\u003e\u003ch3\u003eWhat is covered, precisely\u003c\/h3\u003e\n\u003cp\u003eUL 2849 certificate U14 128702 0012 names M-520 alone and covers the complete electrical system at 48,1 VDC. On the battery side, certificate U10 128702 0009 covers battery FP4818R0 at 18Ah. That is the 18Ah pack. The 27Ah pack has no published UL 2271 certificate. Freesky labels this honestly on their own page as “UL2271 Certified by TÜV (18Ah)”, and we are not going to be vaguer than the manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fs-feat fs-feat--flip\"\u003e\n\u003cdiv class=\"fs-feat__media\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/FREESKY-Alaska-Pro-Blue-2_24819a6a-16c6-4445-ae5f-c314d8d953d2.png?v=1787562844\" alt=\"Freesky Alaska Pro M-520 — Built for tall riders\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"fs-feat__txt\"\u003e\n\u003cspan class=\"fs-feat__k\"\u003eFit\u003c\/span\u003e\u003ch3\u003eBuilt for tall riders\u003c\/h3\u003e\n\u003cp\u003eA 5'6\"–6'8\" quoted fit on a 30.9 × 350 mm alloy seatpost — 50 mm longer than every other bike in the range. If you are over six foot and have been perching on e-bikes built for someone else, this is the one that was drawn around you.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fs-feat\"\u003e\n\u003cdiv class=\"fs-feat__media\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/FREESKY-Alaska-Pro-Green-1_a898710c-4e71-45c4-91fd-a01f94a83354.png?v=1787562849\" alt=\"Freesky Alaska Pro M-520 — 90 lb, double-shoulder downhill fork\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"fs-feat__txt\"\u003e\n\u003cspan class=\"fs-feat__k\"\u003eChassis\u003c\/span\u003e\u003ch3\u003e90 lb, double-shoulder downhill fork\u003c\/h3\u003e\n\u003cp\u003eA downhill double-shoulder suspension fork, front and rear suspension, 180 mm four-piston hydraulic brakes and 26.0\" × 4.0\" fat tires, at 90 lb. Five pounds under the Ranger bikes while carrying nearly twice the battery — the single-motor layout paying for itself again.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003ch2\u003eThe honest ledger\u003c\/h2\u003e\n\u003cdiv class=\"fs-led\"\u003e\n\u003cdiv class=\"fs-led--g\"\u003e\n\u003ch3\u003eGreen flags\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrakes are the real thing: 180MM 4-piston Hydraulic Brakes. Four-piston hydraulics on a bike this heavy is not a given at this price.\u003c\/li\u003e\n\u003cli\u003eSuspension: Front and Rear Suspension, with a Downhill Double Shoulder Suspension.\u003c\/li\u003e\n\u003cli\u003eThe complete-system UL 2849 certificate exists, names this model on its face, and we link the PDF — not a badge image.\u003c\/li\u003e\n\u003cli\u003eRated to carry 400 lbs.\u003c\/li\u003e\n\u003cli\u003eCharging time: 6–8 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fs-led--r\"\u003e\n\u003ch3\u003eRed flags\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAt 40 mph assisted, this is outside every US e-bike class. Off-road and private land, not bike paths.\u003c\/li\u003e\n\u003cli\u003eFreesky publishes peak wattage only — no rated figure. Under our own rating system an undisclosed specification scores zero, and we do not guess at it.\u003c\/li\u003e\n\u003cli\u003eThe linked UL 2271 battery certificate does not cover the full pack this bike ships.\u003c\/li\u003e\n\u003cli\u003eIt weighs 90 lbs. Getting it onto a hitch rack is a two-person job.\u003c\/li\u003e\n\u003cli\u003eCadence (speed) sensor rather than a torque sensor — assist comes on with pedal rotation, not with how hard you push.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhat Freesky publishes about certification\u003c\/h2\u003e\n\u003cp class=\"fs__lede\"\u003eA badge image on a product page is not a certificate. Below is what the certificate document itself says — issuer, number, standard edition, the models printed on its face — and what it does not cover. Every PDF is hosted by us, so the link will still work if Freesky reorganises their files.\u003c\/p\u003e\n\u003cdiv class=\"fs-cert\"\u003e\n\u003cdiv class=\"fs-cert__row\"\u003e\n\u003cdiv class=\"fs-cert__h\"\u003e\n\u003ch3\u003eUL 2849 (complete e-bike electrical system)\u003c\/h3\u003e\n\u003cspan class=\"fs-pill fs-pill--ok\"\u003eCovered\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"fs-cert__d\"\u003eTÜV SÜD America certificate U14 128702 0012 Rev. 00, issued 2025-11-04, names M-520 at a rated voltage of 48,1VDC. Tested to UL 2849:2020\/R:2022-12 and CAN\/UL 2849:2022. \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/UL2849-Alaska-Pro-M520.pdf?v=1787563019\" target=\"_blank\" rel=\"noopener\"\u003eRead the certificate (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fs-cert__row\"\u003e\n\u003cdiv class=\"fs-cert__h\"\u003e\n\u003ch3\u003eUL 2271 (battery pack)\u003c\/h3\u003e\n\u003cspan class=\"fs-pill fs-pill--part\"\u003ePartial\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"fs-cert__d\"\u003eThe certificate Freesky links, U10 128702 0009 Rev. 00, covers battery FP4818R0 rated 18Ah. This bike ships a 45Ah pack. The certificate is real; it does not cover the whole of what is on this bike, and we would rather say so. \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/UL2271-Alaska-Pro-M520-18Ah.pdf?v=1787562992\" target=\"_blank\" rel=\"noopener\"\u003eRead the certificate (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fs-src\"\u003eAll 3 UL 2271 battery certificates in this range — certificate no. U10 128702 0001 Rev. 00, U10 128702 0003 Rev. 00, U10 128702 0009 Rev. 00 — carry the same remark on their face: “The battery is used for off-road LEVs.” That is the certifying body describing the intended use, not our characterisation of it.\u003c\/p\u003e\n\u003ch2\u003eSpeed and the law\u003c\/h2\u003e\n\u003cdiv class=\"fs-law\"\u003e\n\u003cp class=\"fs-law__v\"\u003eOutside the federal and state e-bike definitions — off-road and private land\u003c\/p\u003e\n\u003cp\u003eFreesky rates this bike at 40 mph under pedal assist. The federal low-speed electric bicycle definition (15 U.S.C. § 2085) and every state three-class framework stop at 28 mph, so this machine sits outside them on speed alone — before wattage is even reached. It is not a Class 1, 2 or 3 e-bike, and we will not sell it as one.\u003c\/p\u003e\n\u003cp\u003eFreesky does not publish a rated (nominal) motor wattage for any bike in this range; the figures they publish are peak. The statutory tests are written against the rated figure, so the wattage limb of those tests cannot be run on published data. We say that rather than substitute the peak number, which would be the wrong number.\u003c\/p\u003e\n\u003cp\u003eFreesky's own manual puts it this way: “laws regulating the use of battery-operated bicycles on public roads, parks, and other open areas may vary by state and locality. It is important to consult with your local authorities before riding your e-bike in public areas.” Buy it for private land, OHV areas, and anywhere motor-vehicle rules allow. Check your own state and city before you ride it anywhere public — and ask us, we will put the answer in writing.\u003c\/p\u003e\n\u003cp\u003eWe publish a state-by-state e-bike law hub, and if you want your own state answered in writing before you order, \u003ca href=\"\/pages\/contact\"\u003eask us\u003c\/a\u003e and we will put it in an email you can keep.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHow to read this spec sheet\u003c\/h2\u003e\n\u003cdiv class=\"fs-cards\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePeak, not rated\u003c\/h3\u003e\n\u003cp\u003eFreesky publishes \u003cb\u003epeak\u003c\/b\u003e motor wattage on every model and a rated (nominal) figure on none of them — not on the product pages, not in the comparison table, not in any of the seven user manuals. Peak is the short-burst ceiling; rated is the continuous figure that statutes are written against. A Freesky peak number and another brand's rated number are two different quantities, and comparing them directly will mislead you.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRange is a range for a reason\u003c\/h3\u003e\n\u003cp\u003eEvery range figure here is Freesky's, quoted as a span. Plan around the bottom of it. Rider weight, terrain, temperature, tyre pressure and throttle use all take from the top.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eTop speed is unloaded\u003c\/h3\u003e\n\u003cp\u003eManufacturer top speeds are measured under favourable conditions. They are useful for comparing models within a range and much less useful as a promise about your commute.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSize and fit\u003c\/h2\u003e\n\u003cp class=\"fs__lede\"\u003eFreesky quotes a rider-height range of \u003cb\u003e5'6\"–6'8\"\u003c\/b\u003e for the Alaska Pro M-520, on a 30.9*350MM Alloy Seatpost. That is the manufacturer's fit window, not a guarantee — if you are near either end of it, tell us your inseam and we will tell you honestly whether it will work.\u003c\/p\u003e\n\u003ch2\u003eHow the Alaska Pro M-520 compares\u003c\/h2\u003e\n\u003cdiv class=\"fs-tw\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003ePeak power\u003c\/th\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003cth\u003eTop speed\u003c\/th\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRanger Air M-540\u003c\/td\u003e\n\u003ctd\u003e4,000W\u003c\/td\u003e\n\u003ctd\u003e48V 25Ah\u003c\/td\u003e\n\u003ctd\u003e34 mph\u003c\/td\u003e\n\u003ctd\u003e60–105 Miles\u003c\/td\u003e\n\u003ctd\u003e95 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEurostar Turbo M-410\u003c\/td\u003e\n\u003ctd\u003e4,000W\u003c\/td\u003e\n\u003ctd\u003e48V 25Ah\u003c\/td\u003e\n\u003ctd\u003e34 mph\u003c\/td\u003e\n\u003ctd\u003e60–105 Miles\u003c\/td\u003e\n\u003ctd\u003e99 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,349\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWild Cat Ultra A-340\u003c\/td\u003e\n\u003ctd\u003e3,000W\u003c\/td\u003e\n\u003ctd\u003e48V 25Ah\u003c\/td\u003e\n\u003ctd\u003e37 mph\u003c\/td\u003e\n\u003ctd\u003e60–105 Miles\u003c\/td\u003e\n\u003ctd\u003e83 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRocky Pro A-320\u003c\/td\u003e\n\u003ctd\u003e2,500W\u003c\/td\u003e\n\u003ctd\u003e48V 25Ah\u003c\/td\u003e\n\u003ctd\u003e33 mph\u003c\/td\u003e\n\u003ctd\u003e45–90 Miles\u003c\/td\u003e\n\u003ctd\u003e77 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwift Horse Ultra X-6E\u003c\/td\u003e\n\u003ctd\u003e4,000W\u003c\/td\u003e\n\u003ctd\u003e48V 35Ah\u003c\/td\u003e\n\u003ctd\u003e38 mph\u003c\/td\u003e\n\u003ctd\u003e87–140 Miles\u003c\/td\u003e\n\u003ctd\u003e83 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,599\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCheetah MT-380\u003c\/td\u003e\n\u003ctd\u003e4,000W\u003c\/td\u003e\n\u003ctd\u003e48V 60Ah\u003c\/td\u003e\n\u003ctd\u003e40 mph\u003c\/td\u003e\n\u003ctd\u003e120–200 Miles\u003c\/td\u003e\n\u003ctd\u003e122 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,849\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRanger Plus M-540\u003c\/td\u003e\n\u003ctd\u003e5,000W\u003c\/td\u003e\n\u003ctd\u003e48V 30Ah\u003c\/td\u003e\n\u003ctd\u003e40 mph\u003c\/td\u003e\n\u003ctd\u003e60–120 Miles\u003c\/td\u003e\n\u003ctd\u003e95 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,849\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"is-me\"\u003e\n\u003ctd\u003eAlaska Pro M-520\u003c\/td\u003e\n\u003ctd\u003e4,500W\u003c\/td\u003e\n\u003ctd\u003e48V 45Ah\u003c\/td\u003e\n\u003ctd\u003e40 mph\u003c\/td\u003e\n\u003ctd\u003e98–175 Miles\u003c\/td\u003e\n\u003ctd\u003e90 lbs\u003c\/td\u003e\n\u003ctd\u003e$1,899\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarrior Ultra M-530\u003c\/td\u003e\n\u003ctd\u003e6,000W\u003c\/td\u003e\n\u003ctd\u003e60V 30Ah\u003c\/td\u003e\n\u003ctd\u003e45 mph\u003c\/td\u003e\n\u003ctd\u003e60–120 Miles\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarrior Pro M-530\u003c\/td\u003e\n\u003ctd\u003e4,000W\u003c\/td\u003e\n\u003ctd\u003e48V 30Ah\u003c\/td\u003e\n\u003ctd\u003e40 mph\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"fs-src\"\u003eEvery cell is Freesky's own published figure, read 2026-08-24. A blank cell means Freesky publishes nothing for that field on that model — we leave it blank rather than estimate it.\u003c\/p\u003e\n\u003ch2\u003eFull specifications\u003c\/h2\u003e\n\u003cdiv class=\"fs-tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame style\u003c\/td\u003e\n\u003ctd\u003eEMTB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e4500W Peak Brushless Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque\u003c\/td\u003e\n\u003ctd\u003e170N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e48V 45Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003eUS Standard 3A Smart Charger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging time\u003c\/td\u003e\n\u003ctd\u003e6–8 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange (mfr.)\u003c\/td\u003e\n\u003ctd\u003e98–175 Miles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop speed, pedal assist (mfr.)\u003c\/td\u003e\n\u003ctd\u003e40 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor\u003c\/td\u003e\n\u003ctd\u003eSpeed Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrivetrain\u003c\/td\u003e\n\u003ctd\u003eSHIMANO 7 Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront fork\u003c\/td\u003e\n\u003ctd\u003eDownhill Double Shoulder Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension\u003c\/td\u003e\n\u003ctd\u003eFront and Rear Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrakes\u003c\/td\u003e\n\u003ctd\u003e180MM 4-piston Hydraulic Brakes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTires\u003c\/td\u003e\n\u003ctd\u003e26.0\" x 4.0\" Fat tires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eLCD Color Display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat post\u003c\/td\u003e\n\u003ctd\u003e30.9*350MM Alloy Seatpost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRider height\u003c\/td\u003e\n\u003ctd\u003e5'6\"–6'8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax load\u003c\/td\u003e\n\u003ctd\u003e400 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBike weight\u003c\/td\u003e\n\u003ctd\u003e90 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadlight\u003c\/td\u003e\n\u003ctd\u003e800 Lumen LED Headlight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"fs-src\"\u003eSource: Freesky's published specification for the Alaska Pro M-520 at \u003cspan class=\"fs-addr\"\u003ewww.freeskycycle.com\/products\/alaska-pro-m-520\u003c\/span\u003e, read 2026-08-24. A field Freesky does not publish is left out rather than estimated.\u003c\/p\u003e\n\u003ch2\u003eWhat we counted\u003c\/h2\u003e\n\u003cdiv class=\"fs-measured\"\u003e\n\u003ch3\u003eMeasured by Redtail\u003c\/h3\u003e\n\u003cp\u003eWe pulled Freesky's entire published catalogue on 2026-08-24 — all 60 products and every variant — and counted what could actually be bought that day. \u003cb\u003eFreesky could sell 30 of its own 38 published bike configurations on the pull date — 79%. 0 of its 10 bike models had no buyable colourway at all.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAcross the accessory and parts range, 108 of 136 variants were buyable. We mirror that availability daily rather than list a colour nobody can ship — which is why some options on this page may be greyed out today and back tomorrow.\u003c\/p\u003e\n\u003cp\u003eBetween 2026-08-23 and 2026-08-24 three Camouflage colourways rose $50, one accessory went out of stock, and one product was withdrawn from the catalogue entirely. That is why this page is re-checked daily rather than copied once.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003cp class=\"fs__lede\"\u003eBuy the bike from Redtail and Redtail handles the claim. Send photos or video of the issue with your order number and we take it from there — we file and manage the claim with Freesky on your behalf, and we do not send you to the manufacturer to argue it yourself.\u003c\/p\u003e\n\u003cdiv class=\"fs-cards\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWho covers you\u003c\/h3\u003e\n\u003cp\u003eFreesky's published warranty says, in its own words: “This warranty applies only to products purchased directly from the official FREESKY website (www.freeskycycle.com).” and directs buyers from authorised dealers to “their respective warranty policies”. Redtail is a dealer — so the cover on your bike is \u003cb\u003eRedtail's\u003c\/b\u003e, and the claim comes to us.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWhat Freesky stands behind\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMotor, battery and controller: 24 months (orders on or after 13 November 2025); 18 months before that date\u003c\/li\u003e\n\u003cli\u003eAll other components: 12 months\u003c\/li\u003e\n\u003cli\u003eThe applicable warranty period begins on the original purchase date.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWhat is excluded\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConsumables and wear parts — tyres, tubes, brake pads, cables and housing, grips, chain, spokes\u003c\/li\u003e\n\u003cli\u003eIncorrect assembly, water damage, accidents, or improper or negligent use\u003c\/li\u003e\n\u003cli\u003eOperation or maintenance contrary to the product's maintenance instructions\u003c\/li\u003e\n\u003cli\u003eDefects inherent to the normal service life of the product\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fs-src\"\u003eFreesky's warranty terms as published at \u003cspan class=\"fs-addr\"\u003ewww.freeskycycle.com\/pages\/warranty-policy\u003c\/span\u003e, read 2026-08-24. Reproduced as context for what the manufacturer stands behind; your cover is Redtail's.\u003c\/p\u003e\n\u003ch2\u003eShipping, returns \u0026amp; support\u003c\/h2\u003e\n\u003cdiv class=\"fs-cards\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003eFree shipping on every electric bike within the contiguous United States (lower 48). Orders are prepared and dispatched within 1–3 business days of confirmation. Most e-bikes arrive within 5–10 business days after dispatch, depending on location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eOn delivery\u003c\/h3\u003e\n\u003cp\u003eInspect your shipment at delivery. Damage, defects, or incorrect items must be reported with photos within 48 hours; claims submitted after this window are not accepted.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cp\u003eChange-of-mind returns accepted only on unopened, factory-sealed items requested within 72 hours (3 days) of delivery, with a 15% restocking fee plus return shipping. Once a box is opened or a bike is ridden, it is no longer eligible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eIf something is wrong\u003c\/h3\u003e\n\u003cp\u003eBikes with power, charging, or component issues are covered under the manufacturer warranty; Redtail coordinates repair or replacement remotely at no cost to the customer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fs-src\"\u003eFull terms: \u003ca href=\"\/pages\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e and \u003ca href=\"\/pages\/refund-policy\"\u003eRefund \u0026amp; Return Policy\u003c\/a\u003e. Alaska, Hawaii, U.S. territories, P.O. boxes, and remote areas may incur extra charges or be excluded — contact us before ordering.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdiv class=\"fs-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow far does the Freesky Alaska Pro M-520 really go?\u003c\/h3\u003e\u003c\/summary\u003e\u003cp class=\"a\"\u003eFreesky rates 98–175 miles from 45Ah split across an 18Ah and a 27Ah pack. That is the manufacturer's figure, not a tested one. Plan around 98 miles; the 175 assumes light assist, flat ground and a light rider.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eIs the Alaska Pro M-520 battery UL 2271 certified?\u003c\/h3\u003e\u003c\/summary\u003e\u003cp class=\"a\"\u003ePartly, and Freesky says so themselves. Certificate U10 128702 0009 covers battery FP4818R0 at 18Ah — the smaller of the two packs. The 27Ah pack has no published UL 2271 certificate. Freesky's own page label reads “UL2271 Certified by TÜV (18Ah)”. Publishing the 27Ah certificate would close this, and we will update the page when it exists.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eIs the Alaska Pro M-520 UL 2849 certified?\u003c\/h3\u003e\u003c\/summary\u003e\u003cp class=\"a\"\u003eYes. TÜV SÜD America certificate U14 128702 0012, issued 2025-11-04, names M-520 alone and covers the complete e-bike electrical system at a rated voltage of 48,1 VDC. The PDF is linked on this page.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eIs the Alaska Pro M-520 street legal?\u003c\/h3\u003e\u003c\/summary\u003e\u003cp class=\"a\"\u003eNo. At 40 mph assisted it sits outside the federal low-speed electric bicycle definition and every state three-class framework, which stop at 28 mph. Off-road and private land only.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat size rider does the Alaska Pro M-520 fit?\u003c\/h3\u003e\u003c\/summary\u003e\u003cp class=\"a\"\u003eFreesky quotes 5'6\"–6'8\" — the highest ceiling and the highest floor in the range — on a 350 mm seatpost, 50 mm longer than any other Freesky. Riders under 5'6\" should look at the Rocky Pro A-320 or Eurostar Turbo M-410.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan you ride the Alaska Pro M-520 on one battery?\u003c\/h3\u003e\u003c\/summary\u003e\u003cp class=\"a\"\u003eFreesky publishes the pack as 45Ah split 18Ah + 27Ah but does not publish an operating procedure for running on a single pack. We will not guess at it — ask us and we will get Freesky's answer in writing before you order.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003ch2\u003eThe bottom line\u003c\/h2\u003e\n\u003cdiv class=\"fs-close\"\u003e\u003cp\u003eThe long-distance bike, and the only one here that gives a tall rider a frame that fits. 45Ah across two packs is a genuinely good piece of design. The gap is documentation, not engineering: only the 18Ah pack carries a published battery certificate, and Freesky flags that themselves. Buy it for the range and the fit; ask us to chase the 27Ah certificate.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2\u003eKeep looking\u003c\/h2\u003e\n\u003cul class=\"fs-mesh\"\u003e\n\u003cli\u003e\u003ca href=\"\/products\/freesky-ranger-air-m-540\"\u003eCompare the Ranger Air M-540\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/freesky-eurostar-turbo-m-410\"\u003eCompare the Eurostar Turbo M-410\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/freesky-wild-cat-ultra-a-340\"\u003eCompare the Wild Cat Ultra A-340\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/freesky-rocky-pro-a-320\"\u003eCompare the Rocky Pro A-320\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/freesky\"\u003eEvery Freesky e-bike\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/brands\"\u003eEvery e-bike brand at Redtail\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrimary sources\u003c\/h2\u003e\n\u003col class=\"fs-bib\"\u003e\n\u003cli\u003eFreesky, product page for the Alaska Pro M-520. \u003cspan class=\"fs-addr\"\u003ewww.freeskycycle.com\/products\/alaska-pro-m-520\u003c\/span\u003e. Retrieved 2026-08-24, US market forced.\u003c\/li\u003e\n\u003cli\u003eTÜV SÜD America, Inc., certificate no. U14 128702 0012 Rev. 00, “UL 2849:2020\/R:2022-12”, holder GuangZhou Yansan Science \u0026amp; Technology Co.,LTD, models named on face: M-520, issued 2025-11-04, test report no. 64171250609801. Deposit copy held by Redtail; retrieved 2026-08-24.\u003c\/li\u003e\n\u003cli\u003eTÜV SÜD America, Inc., certificate no. U10 128702 0009 Rev. 00, “UL 2271:2018”, holder GuangZhou Yansan Science \u0026amp; Technology Co.,LTD, models named on face: FP4818R0, issued 2025-09-19, test report no. 6828225088601. Deposit copy held by Redtail; retrieved 2026-08-24.\u003c\/li\u003e\n\u003cli\u003eFreesky, user manual for this model (M-520_Instruction_English.pdf), published at \u003cspan class=\"fs-addr\"\u003ewww.freeskycycle.com\/pages\/user-manual-download\u003c\/span\u003e. Retrieved 2026-08-24.\u003c\/li\u003e\n\u003cli\u003eFreesky, Warranty Policy. \u003cspan class=\"fs-addr\"\u003ewww.freeskycycle.com\/pages\/warranty-policy\u003c\/span\u003e. Retrieved 2026-08-24.\u003c\/li\u003e\n\u003cli\u003eUnited States, \u003ci\u003eLow-speed electric bicycle\u003c\/i\u003e, 15 U.S.C. § 2085. \u003cspan class=\"fs-addr\"\u003euscode.house.gov\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003eRedtail eBikes, catalogue census of freeskycycle.com, 2026-08-24 — 60 products, 38 bike variants. First-party dataset.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv class=\"fs-verify\"\u003e\n\u003cb\u003eHow we verified this page.\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003eSpecifications read from Freesky's own product page on 2026-08-24 with the US market forced. An unforced request from outside the US renders another currency, so every price here was read with \u003cspan class=\"fs-addr\"\u003e?country=US\u003c\/span\u003e and proven against the base feed.\u003c\/li\u003e\n\u003cli\u003eCertificates were downloaded, read, and mapped to this bike by the model code printed on the certificate face — never by the filename.\u003c\/li\u003e\n\u003cli\u003ePrice and availability are re-checked against Freesky every day by script; this page follows what they actually charge and actually have.\u003c\/li\u003e\n\u003cli\u003eFigures attributed to Freesky are Freesky's. Redtail has not independently range-tested or speed-tested this bike, and does not claim to have.\u003c\/li\u003e\n\u003cli\u003eFound something wrong? Email \u003ca href=\"\/pages\/contact\"\u003eour team\u003c\/a\u003e — we correct pages and date the correction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Freesky","offers":[{"title":"Black","offer_id":53813560279323,"sku":"M520-PRO-BLACK","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"Blue-gray","offer_id":53813560312091,"sku":"M520-PRO-BLUE","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":53813560344859,"sku":"M520-PRO-GREEN","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"Camouflage","offer_id":53813560377627,"sku":"M520-PRO-CAMOUFLAGE","price":1999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/FREESKY-Alaska-Pro-Black-1_06bd2e8a-4e51-4fbb-8d02-b57248dcecae.png?v=1787562822","url":"https:\/\/redtailebikes.com\/products\/freesky-alaska-pro-m-520","provider":"Redtail Ebikes","version":"1.0","type":"link"}