Wahoo KICKR QR Axle Adapter Kit Description: The Wahoo KICKR Adapter is used to secure a 130 or 135mm quick release road or mountain bike to the Wahoo KICKR trainer. Simply orientate the adapters accordingly, and secure the bike to the KICKR trainer. Now for the hard part, start pedaling. Features: QR adapter for KICKR CORE, KICKR V4 and newer model trainers Adapts a standard 130 or 135mm hub spacing for use on certain model KICKR trainers Includes: Quick release skewer Drive side adapter Non-drive side adapter Specifications: Axle Size: 9 x 130/135mm