The Sram Maxle ULT Rear 12x197 229mm axle is a high-quality, durable through axle designed by SRAM specifically for bicycles. This product offers excellent performance and reliability for cycling enthusiasts looking to upgrade their bike's rear wheel. With a 12mm diameter and 229mm length, this axle provides a secure and stable connection between the wheel and the bike, enhancing overall safety and efficiency during rides.