51T FITS SX/EXC
7075-T6 aluminium – the strongest aluminium in the world. Developed for use in the aircraft industry and adopted by the leading sprocket manufacturers due to its outstanding wear properties. This sprocket is not only particularly wear-resistant and therefore very durable, but also perfectly machined: hence, the chain runs cleanly and smoothly without any vibration. The chain wheel is also very lightweight, without its strength being impaired: this allows greater acceleration and more direct braking.
