Tailored adjustment for a precise fit: this skewer offers an easy-to-adjust width with a spacer set for precise alignment between your bike and trainer. Easy installation and enhanced durability: replace the existing thru-axle with this adapter to begin indoor training quickly, with improved wear resistance and a clean, secure connection. Reliable, quality alloy construction: made from alloy, this cycle trainer skewer is wear-resistant and sturdy, resistant to deformation and rust for long-lasting performance. Broad compatibility across rear-axle widths: designed for rear axles from 135 mm to 148 mm. Indoor training with mixed-bike setups: quickly adapt between different bikes that have rear thru-axles in the 135–148 mm range, using the adjustable width and spacer set to achieve a secure fit every time. Upgrading worn or unreliable thru-axles: replace a tired thru-axle with this alloy adapter to improve durability and reliability during frequent trainer sessions without compromising fit or safety. Multi-bike home use: accommodate several bikes with varying rear-axle widths for fast, tool-free swaps and consistent trainer performance.