The KICKR CORE 2 brings flagship Wahoo ride-feel and connectivity to a value-packed direct-drive trainer. This WFBKTR125-3CC version includes Zwift Cog (virtual single-cog “cassette”) and the Zwift Click handlebar controller, so you can shift virtually in Zwift without changing your bike’s cassette—perfect for multi-bike households and quick setup.
What’s Included
KICKR CORE 2 direct-drive smart trainer
Zwift Cog and Zwift Click (virtual shifting package)
Thru-axle adapters: 12×142 mm and 12×148 mm
Quick-release skewer for 130/135 mm QR bikes
Power supply and regional plugs
Key Performance & Connectivity
Proven KICKR ride feel with heavy flywheel for smooth inertia and realistic coasting
Accuracy targeted to trainer class (power and speed) with integrated cadence—no extra sensors required
Race Mode power broadcasting for ultra-fast data response in sprints and surges
Dual-band + Wi-Fi connectivity for rock-solid links to apps and head units
KICKR Bridge (HRM passthrough) to forward Bluetooth/ANT+ heart-rate data into your training app
Multi-color status LEDs confirm power, network, and device connections at a glance
Zwift Cog + Click (What You Gain)
Mount Zwift Cog once—no cassette swaps—then use Zwift Click to shift virtually in Zwift
Ideal for households sharing the trainer among 8–12 speed bikes (and beyond) without re-cogging
Clean, quiet, low-wear setup that gets you riding faster
Fit & Compatibility
Rear wheel sizes: 700c road / 650c road / 29″ MTB / 650b MTB / 26″ MTB / 24″ road & MTB
Hub standards included: 130/135 mm QR, 12×142 & 12×148 mm thru-axle
Freehub/cassette: uses Zwift Cog (included) instead of a traditional cassette on this 3CC model
App/platforms: pairs with leading training apps and head units via ANT+, Bluetooth, and Wi-Fi
Accessories: compatible with KICKR CLIMB and KICKR HEADWIND (sold separately)
Front wheel block: sold separately
Setup & Use Notes
Assemble the stable 4-bolt leg system, fit wheel adapters, slide on Zwift Cog, and tension per guide
Pair to your app via Wi-Fi or BLE/ANT+; enable Race Mode if you want the fastest power response
Calibrate if prompted by your app; keep firmware current for best accuracy and features
Specs At A Glance
Part Number: WFBKTR125-3CC
Dimensions (assembled): approx. 23.5 × 20.5 × 18.5 in (59.7 × 52 × 47 cm)
Weight (unboxed): approx. 43.5 lb (19.7 kg)
Supported axles: QR 130/135, 12×142/148 (adapters included)
Why Riders Choose This Version
Fast, no-cassette swaps thanks to Zwift Cog + Click
The ride feel and connectivity people expect from the KICKR family
A stable, quiet, durable trainer that’s easy to share across different bikes and drivetrains
