Eunorau M12 Thru-Axle Trailer Hitch Adapter, Mid-Drive
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Eunorau M12 Thru-Axle Trailer Hitch Adapter, Mid-Drive
Eunorau's M12 thru-axle adapter lets its one-wheel cargo trailer attach at the thru axle of a mid-drive Eunorau. Pick 142–148 mm dropouts for the SPECTER-ST and URUS, or 175–190 mm for the SPECTER-S. It is $52.99, with free shipping to the lower 48 and US support.
What you get with this m12 thru-axle adapter
A steel thru axle in two lengths with M12 × P1.5 threads, which Eunorau lists for attaching its one-wheel trailer to a mid-drive Eunorau.
The figures below are Eunorau's own, one value per row, and the fitment table repeats Eunorau's model list.
| Thread pitch | M12 × P1.5 |
| Material | Steel |
| Color | Black |
| Axle length, 142–148 mm dropouts | 185 mm |
| Axle length, 175–190 mm dropouts | 233 mm |
Eunorau's own listing for this item (eunorau-ebike.com/products/m12-thru-axle-trailer-hitch-adapter-fit-for-mid-motor-ebike), read on September 28, 2026.
Fitment
| 142–148 mm | SPECTER-ST, URUS |
| 175–190 mm | SPECTER-S |
| Trailer | Eunorau ONE-Wheel cargo trailer |
Choose the variant by your dropout width; the table gives Eunorau's model for each. If you are unsure, email support@redtailebikes.com and we will check it with you before you order.
M12 Thru-Axle Adapter · dispatched within 1–3 business days
Why buy it from Redtail
Free shipping
We cover shipping to any address in the lower 48. Our shipping policy.
Pay over time
With Shop Pay, a $52.99 purchase could be split into 4 interest-free payments of $13.25 every 2 weeks.
Rates from 0-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.
Warranty and damage claims
If it arrives damaged, note it with the carrier and send us photos within 48 hours: we file the claim with the carrier and arrange a replacement or repair. Where Eunorau's warranty applies, our US support desk coordinates the claim with Eunorau, so you are not the one writing to a factory. Our returns policy.
4 interest-free payments with Shop Pay
Frequently asked questions
Which size do I need?
Eunorau's answer: 142–148 mm for the SPECTER-ST and URUS, 175–190 mm for the SPECTER-S. The axle is 185 mm or 233 mm long to match.
How long does it take to arrive?
Orders are prepared and dispatched within 1–3 business days of confirmation. You get a tracking number by email the moment it ships, and a part ordered with a bike may ship separately, on its own schedule.
Can I return it?
Our returns policy applies to parts and accessories as it does to bikes; read it before you order a model-specific part, and check the fitment table twice.
Card or PayPal works too
What’s next after you order
Orders are prepared and dispatched within 1–3 business days of confirmation. You get a tracking number by email when it ships.
- Confirmation. Your order confirmation arrives by email.
- Ordering with a bike? Parts and accessories may ship separately, on their own schedule.
- If anything is wrong. Write to us through our contact page, and we help you file the claim with Eunorau.
See the rest in the Eunorau accessories collection, with every accessory we sell beside it; the Eunorau bikes we sell are in the Eunorau collection.
M12 Thru-Axle Adapter · $52.99
How we verified this page. We checked every figure on it against Eunorau's own listing for this item (eunorau-ebike.com/products/m12-thru-axle-trailer-hitch-adapter-fit-for-mid-motor-ebike), read on September 28, 2026; prices and stock were read the same day, and the fitment table repeats the models Eunorau names.
Verified by Milad Ghobadibeygvand, BScN (Western University, 2014). Found something that does not match Eunorau's current listing? Email support@redtailebikes.com and we will correct it.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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