Add extra versatility to your eBike with this do-it-yourself conversion kit! Easily swap out your existing wheels for these 27.5” tall and 3” wide mountain bike tires to change how your eBike performs on various terrain. With a Thru-Axle design, this wheelset is sturdily threaded through your bike’s fork and hub for a secure fit.

*Possibly Compatible with other models - please consult this guide to identify your hub spacing and check compatibility

Technical Specifications

Front Hub Spacing


Front Hub Axle Type

Thru Axle, 15mm

Rear Hub Spacing


Rear Hub Axle Type

12mm Thru Axle

Rim Style

60mm Wide, Solid, 36 Hole

Driver Style

HG - Hyperglide

Rim Colour

Solid Black


27.5x3 CST


Bike Name Compatible
Juggernaut Ultra FS
Juggernaut Ultra FS Pro 26x4 Version
Juggernaut Ultra FS Pro 27.5x3 Version
Juggernaut Ultra FS Pro 2
Juggernaut Ultra Beast
Monte Capro Ultra 26x4.8
Monte Capro Ultra 27.5x2.8

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Customer Reviews

Based on 1 review
William Corwin

This is a bit off the subject. But I’ve made a request several days ago and haven’t got any response. My ultra FS is in the shop repierce that the axle might be broken the gears turn but the wheel doesn’t. Do you want to shop said perhaps it has something to do with the software? If you actually broken, it seems like it could be a warranty issue? Please advise feel