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 electric bike performs on various terrain. With a Quick-Release design, this wheelset is simple to install without the use of any tools. Tires & tubes not included.



 Bike Name Compatible
Juggernaut Classic Duo
Stunner X 6 26x4
Stunner X 5 25x4 - some versions*
Juggernaut Classic
Juggernaut Ultra Duo

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

Technical Specifications:

Component  Specification
Front Hub Spacing 135mm
Front Hub Axle Type 5mm Quick Release
Rear Hub Spacing 170mm
Rear Hib Axle Type 5mm Quick Release
Rim Style 50mm Wide, Solid, 36 Hole
Driver Type HG - Hyperglide
Rim Colour Solid Black

Technical Specifications

Front Hub Spacing


Front Hub Axle Type

15mm Thru Axle * Not Included

Rear Hub Spacing


Rear Hub Axle Type

Quick-Release, 5mm *Not Included

Rim Style

60mm Wide, Solid Rim, 36 Hole

Driver Style

HG - Hyperglide

Rim Colour

Solid Black


27.5x3 Chaoyang


7 lbs / 3.2 kg


Bike Name Compatible
Juggernaut Ultra Duo 3
Other Current Biktrix Bikes

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Customer Reviews

Based on 8 reviews
Still a Fat tire wheelset, not a true MTB wheel as width is 60mm

Still, 26x4.00 are not for me or my riding style. These wheels, although still "fat", can accomodate 2.8 DH tires with good knobs for cornering, tracking, and more surgical handling. I have Maxxis DHR and DHF and they rock on these wheels. The 26 will be saved for a snowy day, the 27.5 are my go to wheels.

Karl Virkus
27.5x3 Wheelset

Bought 2nd wheelset because I was curious on how it would change my ride. 27.5 rear install went well, will be able to switch back to 26x4 no problem. Also trying 27.5 on front 26 on rear setup.

Jens Moder
Defective Freehub

I had a freehub failure after a few hundred kilometers of use. Unfortunately the bicycle was out of warranty and I had to purchase a replacement hub. The failure was that internal ratchet ring had lost it's bond with the hub and was slipping. Peddling barely moved the bicycle forward. Bitrix support was fabulous. Not only did they help diagnose and offer replacement parts but they overcame a big shipping problem delivering to a Greek island. My bike would be sitting DOA without their help and support.

Mitchell Jackson
No show

I was informed after placing the order with a support person that the tire was no longer in stock. So, I went elsewhere to find replacement tires.

Brian Cooley
Good product, didn’t deliver on color

Product is good, wait was long and didn’t get color I ordered, also waiting on bell and water bottle holder still.