Easily adjustable: Comes with a variety of thickness spacers for easy width adjustment, ensuring a biketrainer thruaxle skewer fit every time Easy install: Simply remove your bike's existing thruaxle and it with this adapter, not only adding a stylish look but also enhancing wear resistance; you're ready to start indoor training with no special tools or expertise required Strength in every ride: Engineered with quality alloy material, this cycle trainer skewer boasts unrivaled sturdiness and longevity, ensuring it stays wearresistant and no deformation or rust for enduring performance Optimized indoor cycling setup: Designed with three thread pitch options P1.0, P1.5, P1.75 for rear axles from 135mm to 148mm, streamlining compatibility with different bike models and trainers, facilitating easy integration Use scenarios: You are setting up indoor training for a bike with a thruaxle and need a quick, tool conversion to your trainer. You own multiple bikes with rear axle spacings from 135mm to 148mm and benefit from a single adapter with three thread pitch options to cover all models. You want a durable, wearresistant trainer skewer for frequent use that resists deformation and rust over time.