Bicycle Frame Compatibility [CORE]

This article addresses Bicycle Frame Compatibility for KICKR CORE smart bike trainers. Please also review the article on Drivetrain Compatibility for KICKR and CORE.

Because of the wide variety of bicycle makes and models, it is not possible for Wahoo to guarantee the KICKR’s compatibility with all bicycles matching these parameters. To fully ensure compatibility, we recommend visiting a local Wahoo retailer to test your bicycle’s fit before purchasing.  While Wahoo has conducted tests on Wahoo trainer safety and compatibility with certain bikes, the trainer end user is ultimately responsible for ensuring that their bike frame is compatible with the Wahoo trainers such that damage to the bike frame does not result from using the trainer.

We strongly discourages altering trainers to fit bikes deviating from the following specifications including (but not limited to) grinding-down components, adding washers, or improperly reversing spacers as these may void your warranty and increase inherent risk. Wahoo Fitness is not liable for any damage or injury related to improper installation, modification, or misuse of hardware.

1. Supported Wheel Sizes 

Wheel Size ISO Description
700C 622 mm road, cross gravel, hybrid
29 inch 622 mm mountain


The CORE is optimized for 700c bikes. 700c, 29 inch, and some 27.5 inch bikes will fit on the CORE and sit level without any further accessories. Some 27.5 inch and all bikes with smaller wheel sizes will require a wheel block or some other front wheel support to make the bike level when on the trainer. There is no 'standard size' wheel block for this application. We do not suggest mounting 24 inch or smaller bicycles on the CORE.

2. Supported Rear Hub Standards

Type Standard Description Uses Also Requires
Quick Release 10x130mm common road
  • Adapter A
  • Adapter B
QR axle, included
  10x135mm hybrid, legacy mountain
  • Adapter A
  • Adapter B
QR axle, included
Thru Axle 12x142mm common road, cross, gravel, Standard mountain
  • Adapter C
  • Adapter D
Your bike's thru axle
  12x148mm Boost mountain
  • Adapter C
  • Adapter E
Your bike's thru axle

The CORE does not support bolt-on hubs, Trek Thru-skew hubs, quick releases axles narrower or wider than 130 or 135mm, or thru axle hubs larger in diameter than 12mm, narrower or wider in width than 142 or 148mm. For this reason, the following bicycles are not compatible

Type Standard Description
Quick Release /
10x120mm track
Quick Release /
10x126mm legacy road, < 8 speed
Quick Relase 10x141mm Boost QR
Thru Axle 12x135mm legacy Specialized SCS
Thru Axle 12x157mm SuperBoost mountain
Recumbent   recumbent bicyles


4. Known Bike Incompatibilities

The following bikes are not compatible with any KICKR or CORE.

5. Conditional compatibilities

Electric Bikes (eBikes) are compatible only when the following conditions are met:

  • The motor is off and not providing any assistance.
  • The combined weight of rider, bike, and battery is below the stated limit of 250lbs / 113 kg.
  • The manufacturer has confirmed no concerns regarding the bike’s integrity when used on a stationary trainer. 

The following bikes are compatible when used with updated (2020) thru axle adapters.

  • All Cervelo disc frames
  • Lauf True Grit and Seigla
  • 2021+ Giant  Propel & TCR disc frames
  • 2020+ Trek Domane & Madone
  • 2021+ Trek Emonda, Checkpoint Carbon, and Top Fuel 
  • 2021+ Rondo Ruut AL2
  • Ventum thru axle frames

The updated adapters are available for purchase on our website. 

In order to identify which adapter set you have, look for a taper or chamfer in the drive-side spin cap (parts # 3 [original] and 7 [updated]).


The new adapters require installation of a new drive-side freehub lock nut (included in the kit), for both Shimano HG/SRAM/Campagnolo and SRAM XDR freehubs.  Installation instructions can be found here. For any further questions, please reach out to our customer support team.

6. Step-by-step Frame Compatibility Check