penang bike shop, Cassette 12speed

SHIMANO Ultegra 12-speed Hyperglide+ Road Cassette Sprocket

The uninterrupted shifting experience of the ULTEGRA R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed FREEHUB bodies.