Quick answer

The Eunorau FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) is a fat-tire hunting e-bike. Eunorau rates it at a 48V1000W mid-drive motor rated at 160 N.m and 80 Miles (48V/17Ah SAMSUNG Cells+ Second Battery 14Ah/17Ah). $3,449 with free shipping in the lower 48.

  • 1000 W160 N.m motor
  • 15 AhBattery
  • 80 miMfr. range
  • 26×4.0Tires

Who the FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) is for

Buy it if

  • Loose, steep, or broken ground — sand, gravel, snow, and root-covered trail
  • Sustained climbing, where a mid-drive's gearing beats any hub motor
  • Quiet backcountry access and hauling gear off-road

Look elsewhere if

  • Buyers who want the headline range without buying the second battery
Eunorau FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) — The motor
Power

The motor

Eunorau specifies 48V1000W BAFANG M615 mid motor with Cadence Sensor and 160 N.m torque. A mid-drive delivers its torque through the gears, which is why it holds a steep climb where a hub motor stalls.

Eunorau FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) — Battery and range
Range

Battery and range

Battery: 80 Miles (48V/17Ah SAMSUNG Cells+ Second Battery 14Ah/17Ah). Eunorau rates the range at 80 Miles (48V/17Ah SAMSUNG Cells+ Second Battery 14Ah/17Ah). Charging takes 4 - 6 hours. Real-world range moves with rider weight, terrain, temperature and throttle use.

Ride

Suspension

Front: RST GUIDE 75mm Travel. Rear: KS-388L,190mm.

Control

Brakes and tires

Brakes: EUNORAU design Hydraulic disc Brakes 180mm with Motor Cut-Off Sensor in Brake Handles. Tires: Kenda Krusade Sport Tires 26" x 4.0" with K-Shield Protection.

Controls

Display and drivetrain

Display: CDC6 LCD Display. Drivetrain: SHIMANO(Or SUNRACE DLM900R9) 9-Speed.

The honest ledger

Green flags

  • Mid-drive motor — it puts power through the gears, which is what lets it climb steep, loose ground where a hub motor bogs down
  • Genuine suspension at both ends — RST GUIDE 75mm Travel up front, KS-388L,190mm at the rear
  • Hydraulic disc brakes with motor cut-off in the levers

Red flags

  • Eunorau publishes no UL certification for this model. If your building or insurer requires a UL-listed battery, ask us before ordering rather than assuming
  • The headline range (80 Miles (48V/17Ah SAMSUNG Cells+ Second Battery 14Ah/17Ah)) assumes the optional second battery, which is bought separately — the standard pack will not reach it
  • Fenders are listed as optional rather than included — budget for them if you plan to ride in wet weather
  • The rear rack is an optional extra, so factor it in if you intend to carry cargo
  • Eunorau publishes no maximum speed for this model, so we do not state one and you should not infer a US class from its wattage
  • Eunorau publishes no payload capacity for this model — email us and we will ask them rather than guess

How the FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) compares

All figures below are Eunorau's own published numbers. A blank cell means Eunorau does not publish that spec for that model — left empty rather than guessed.

Spec FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) Defender Full-Suspension Fat FAT-HD 1.0 Pro Mid-Drive Fat eBike (Hunter X7)
Price $3,449 $1,599 $1,999
Motor 48V1000W BAFANG M615 mid motor with Cadence Sensor and 160 N.m torque 48V1000W BAFANG brushless mid motor with 160 N.m torque
Battery 48V/15Ah SAMSUNG Cells+Optional Second Battery (Max17Ah) 48V15Ah, Optional 15Ah/17Ah battery (Dual battery design) 48V/25Ah
Range (mfr.) 80 Miles (48V/17Ah SAMSUNG Cells+ Second Battery 14Ah/17Ah) Up to 80 miles (with dual batteries) Up to 60 Miles
Top speed (mfr.) 20 MPH (32 KM/H) under speed limited/locked 20MPH
Front suspension RST GUIDE 75mm Travel ZOOM 100mm travel suspension fork RST GUIDE 100mm Travel
Rear shock KS-388L,190mm EXA KS/A5, 165mm
Drivetrain SHIMANO(Or SUNRACE DLM900R9) 9-Speed SHIMANO ASLM315 7RC-7S Shimano Derailleur 7 speed gear shift system
Tires Kenda Krusade Sport Tires 26" x 4.0" with K-Shield Protection CHAOYANG Tires 27.5 x 3.0 Kenda Tires 26" x 4.0"
Payload 300 lbs / 136kg 375 lbs
Frame Aluminum alloy 17/19inch+Front&Rear Suspension Aluminum Alloy 6061 with Front Suspension Fork 6061 Aluminum Alloy

Source: each manufacturer product page on eunorau-ebike.com, pulled 2026-08-13 (source-specs_20260813.json). Blank = not published by Eunorau.

Full specifications

Motor 48V1000W BAFANG M615 mid motor with Cadence Sensor and 160 N.m torque
Frame Aluminum alloy 17/19inch+Front&Rear Suspension
Fork RST GUIDE 75mm Travel
Shock KS-388L,190mm
Battery Range 80 Miles (48V/17Ah SAMSUNG Cells+ Second Battery 14Ah/17Ah)
Battery Charging Time 4 - 6 hours
Battery Type Lithium-Ion
Battery Capacity 48V/15Ah SAMSUNG Cells+Optional Second Battery (Max17Ah)
Box Dimensions (cm) 156 L x 32.5 W x 88H
Throttle Thumb Throttle
Display CDC6 LCD Display
Headlight Front LED Headlight
Taillight YES
Rear Rack Optional
Fender Optional
Rims 26 inch Black Alloy
Spokes Stainless Steel
Tires Kenda Krusade Sport Tires 26" x 4.0" with K-Shield Protection
Cassette SHIMANO (Or SUNRACE RDM91) 9-Speed Freewheel
Shifter SHIMANO(Or SUNRACE DLM900R9) 9-Speed
Chainring 42T 7075 CNC chain-wheel crank
Brakes EUNORAU design Hydraulic disc Brakes 180mm with Motor Cut-Off Sensor in Brake Handles
Handlebar Adjustable Stem for Comfort - Matte Black
Saddle Comfortable Saddle
Pedals High-Quality Nylon Pedals
Manual INCLUDED
Tool INCLUDED

Specifications as published by Eunorau at eunorau-ebike.com/products/fat-hs, verified 2026-08-13. We publish the manufacturer's figures as given and do not add specs Eunorau does not state. Found an error? Email support@redtailebikes.com.

Warranty

Component Coverage
Frame 10 years
Battery 24 months
Motor 24 months
Electrical components 24 months

What it covers

Manufacturing defects in Eunorau's original parts and components.

Eunorau states it continues to support the product after the warranty period as a manufacturer courtesy, and may ask only for shipping costs on replacement parts.

What you must do

  • You are the original purchaser — the warranty does not transfer
  • Proof of purchase (your Redtail order confirmation)
  • Product registration with Eunorau right after purchase
  • An e-bike check-up by a Eunorau specialist or dealer after the first year of use

Not covered

  • Ordinary wear and tear — brake pads, rotors, spokes, grips, shifters, brake cables and casings, tires and tubes, chains, chainrings, cassettes, transmission gears
  • Labor charges for part replacement
  • Corrosion from moisture or heat, and cosmetic deterioration of the finish
  • Damage from accident, abuse, stunt riding, racing, improper storage, or neglect

24-Month+ Limited Warranty issued by Eunorau Bikes, a Nevada corporation. Bikes bought for commercial use — rental fleets, delivery, sharing programs — get a 50% reduced warranty period. Full terms are published by Eunorau at eunorau-ebike.com/pages/warranty. Redtail coordinates warranty claims for bikes bought from us, so send it to us rather than to Eunorau: support@redtailebikes.com.

Manuals & documentation

In the box

Eunorau's spec sheet for this model lists a printed manual and a tool kit as included.

Any other document

Eunorau publishes display, controller, shock and accessory manuals across several files. Tell us which one you need and we will send you our copy, so you are not hunting through a supplier download hub.

support@redtailebikes.com

Eunorau publishes display and component manuals rather than a per-bike user manual. We link only the manual Eunorau lists against this exact model. Need a document we haven't linked? Email support@redtailebikes.com and we'll request it from Eunorau.

Shipping, returns & support

Shipping

Free shipping on every electric bike within the contiguous United States (lower 48).

Orders are prepared and dispatched within 1–3 business days. Most e-bikes arrive within 5–10 business days after dispatch.

Ships via UPS, FedEx, or LTL freight for larger items, with tracking emailed at dispatch. Freight deliveries may need a scheduled appointment and a signature.

On delivery

Inspect your shipment at delivery. Damage, defects, or incorrect items must be reported with photos within 48 hours.

If a bike arrives dead, won't charge, throws an error code, or has a faulty component, it is covered under the manufacturer warranty and Redtail coordinates repair or replacement remotely.

Returns

Change-of-mind returns accepted only on unopened, factory-sealed items requested within 72 hours 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.

Order cancellations carry a 3% transaction fee, because card-processing fees are non-recoverable.

Alaska, Hawaii, U.S. territories, P.O. boxes, and remote areas may incur extra charges or be excluded — contact us before ordering. Full terms: Shipping Policy · Refund & Return Policy.

Frequently asked questions

How far does the Eunorau FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) go on one charge?

Eunorau rates the FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) at 80 Miles (48V/17Ah SAMSUNG Cells+ Second Battery 14Ah/17Ah). That figure assumes the optional second battery, bought separately. Charging takes 4 - 6 hours. Manufacturer range figures are measured under favorable conditions — expect less with hills, heavy loads, cold weather or heavy throttle use.

How fast is the Eunorau FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8)?

Eunorau does not publish a maximum speed for this model, so we won't state one. Because U.S. e-bike class is defined by assisted speed, you should not infer a class from its wattage. Email support@redtailebikes.com and we'll ask Eunorau.

Why choose a mid-drive over a hub motor?

A mid-drive delivers power through the bike's gears, so it multiplies torque on a climb the same way your legs do in a low gear. A hub motor delivers a fixed output at the wheel and bogs down on steep, loose ground.

What warranty covers the Eunorau FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8)?

Eunorau's 24-Month+ Limited Warranty: 10 years on the frame and 24 months on the battery, motor and electrical components, covering manufacturing defects. It requires registration with Eunorau after purchase, applies to the original purchaser only, and excludes wear items and labor. Redtail coordinates claims for bikes bought from us.

How does the FAT-HS Full-Suspension Mid-Drive Fat eBike (Hunter X8) ship, and can I return it?

Free shipping within the contiguous U.S., dispatched in 1–3 business days and typically delivered 5–10 business days later. Inspect it at delivery — damage or defects must be reported with photos within 48 hours. Unopened change-of-mind returns are accepted within 72 hours with a 15% restocking fee plus return shipping.

Keep looking

All Eunorau e-bikes we stock  ·  Compare the Defender Full-Suspension Fat eBike  ·  Compare the FAT-HD 1.0 Pro Mid-Drive Fat eBike (Hunter X7)  ·  Every e-bike brand at Redtail  ·  Shop electric bikes by type

How we verified this page. Every specification above was read from Eunorau's own published product page on 2026-08-13 and is reproduced as Eunorau states it. Where Eunorau does not publish a figure, this page leaves it out rather than estimating. Warranty terms are Eunorau's, quoted from their warranty policy; shipping and return terms are Redtail's own. Prices are USD and current at the date shown. Corrections: support@redtailebikes.com.

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