fit: The included spacer set enables easy width adjustment, allowing precise tuning of your bike and trainer for performance. Easy to assemble: Upgrade your bike quickly by replacing the existing thruaxle with this adapter. It improves durability and delivers a sleek appearance while making indoor training start up smooth and hassle. Durable alloy construction: Built from alloy, this bike trainer skewer offers sturdy, longlasting performance. It remains wearresistant and resistant to deformation or rust over time. Flexible compatibility: With three wire pitch options P1.0, P1.5, and P1.75 and compatibility with rear axles width of 135 148 mm, you can connect your bike to most indoor trainers for varied training routines. Practical use scenarios: Home interval workouts: Quickly adjust the spacer set to fit different bikes you train with, ensuring a tight, stable connection for intensity sessions. Frequent bike swaps: the thruaxle to move between bikes and trainer setups with minimal tools and time, keeping training momentum. Seasonal or multibike training: Rely on the durable alloy build and wide axle compatibility for consistent performance across bikes and conditions.