Description: 【Rear Throuh Axle】: M TWELVE Rear Hub Barrel Axle Rod, suitable for Cycling Stand. The length can be adjusted through washers, supporting 135-142-148 mm-12 mm barrel axle hubs the same time, with the width requirement of the frame within 176 mm 【Universal】Both ends of the throuh axle adapter are conical heads, suitable for most cycling stand fixed hole positions (traditional barrel axles are either quick release or single sided round heads, which cannot be fixed on the cycling stand) 【Material】: The rear throuh axle is made of aluminum alloy material and processed by CNC to ensure product strength and precision 【Features】: The accompanying conical washer of the thru axle adapter is installed according to the shape of the frame for protection 【Applications】: The quick release bike axle suitable for most trainers in the market also be used normally for daily cycling. In size 20 cmx2 cmx2 cm/7.87 inchx0.79 inchx0.79 inch Specification: Material: Aluminum Alloy Size Chart: 20 cmx2 cmx2 cm/7.87 inchx0.79 inchx0.79 inch Package Includes: 1 Rear Throuh Axle Note: Please allow slightly errors due to manual measurement and different monitors.