Kit consists of a 12mm axle, washers, end caps w/ bolts and a shorter version of the bolt action slider for the classic series trainers Fits most 142mm and 148mm thru axles with 1.0 and 1.75 thread pitch Axle is threaded on both sides *Not compatible with the JetFluid Pro, Supermagneto Pro or PowerBeam Pro Thru axle adapterUPC/EAN/GTIN: 012527018802