Supersprox-stealth means longer life, without compromising weight. They last 3 times longer than an all aluminum sprocket and remain as light as possible thanks to its aluminium core and steel teeth. It?s about...
NTN LLU - A highly efficient friction rubber seal for groove ball bearings but an inner and an outer lip in combination with a v-ground groove in the inner ring. Extremely good sealing effect against dust and dirt...