Thru axle conversion kit for Sonic Disc Brake hubs, for wheels such as the Ardennes, Jet, and Stinger Disc Brake. Note that this conversion kit works only on hubs made on or after ~August 2014. If you are unsure whether your wheel is compatible, please call our customer service before ordering - older hubs are not compatible due to a smaller bearing size. Please note this kit does not fit OE wheels on Cervelo bikes.