This Sram Force XG-1270 E1 12-speed box is designed for all racing, triathlon and time trials enthusiasts who wish to bring their performance to a higher level. It is optimized for 12 -speed SRAM Road transmissions, ensuring a fluid and precise change. Compatibility with the SRAM XDR free wheel bodies means that this box is designed for the most modern transmissions and offers a wide range of applications. Made of high quality steel, it promises durability and reliability in the most demanding conditions. That you are looking for an advantage in terms of speed for your next race or efficiency for long training sessions, this box offers the performance you need. With its 12 speeds, you will always have the right transmission ratio to dominate every road challenge. Of farewell to the compromises in the performance of change and entrusted to this box, developed specifically for use on the road, in the triathlon and the time trial.