The Cycleops 142x 12 Standard Thru Axle Adapter Kit consists of an axle, washers, & end caps with bolts so that you can adapt thru axle bikes to work with Cycleops Classic or Pro series turbo trainers. The axle is threaded on both sides to fit syntace & maxle/abp style thru axle systems. Fits most 142mm thru axles with 1.0 & 1.75 thread pitch Features Adapts a thru axle hub bike for a trainer. Compatible with Cycleops Classic & Pro series trainers. Fits most 142x 12mm thru axle bikes with 1.0 or 1.75 thread pitch.