BBB 'ROLLERBOYS' PULLEY SET 11T BLACK SHIM 9/10/11 spd

This pulley set features industrial - sealed ABEC - 3 rated bearings, delivering super - smooth performance and long - lasting durability. Unlike other brands, these pulleys have high - quality bearings inside. The composite material from EMS Swiss, mixed with 40% glass - fibre, offers unmatched stiffness and enables precise shifting. It comes with all the bushings needed for different shifting systems.

Using this pulley set is easy. First, make sure your bike's shifting system is compatible with the 9, 10, or 11 - speed design. Then, carefully install the pulleys with the included bushings. When riding, you'll notice the smooth performance right away. As for maintenance, keep the pulleys clean. You can use a mild cleaner and a soft cloth to wipe them down regularly. Avoid using harsh chemicals as they might damage the composite material. Also, check the bearings occasionally for any signs of wear. If you notice any issues with shifting, it could be a sign that the pulleys need to be replaced or adjusted.