Shimano Ultegra CS-R8100 11-30 12 Speed Cassette BSS-002432 a similar size as a

a similar size as a standard PRO minitool

Weight: 360g (size Medium CPSC)|340g (size Medium CE)

Outsole: Injected nylon with universal cleat mount (2 or 3 bolt cleat compatible)

easy carrying

No residual dust or streaks

Shimano Ultegra CS-R8100 11-30 12 Speed Cassette BSS-002432 a similar size as aAbout Shimano Ultegra CS R8100 11 30 12 Speed CassetteThe 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. HYPERGLIDE+ cassettes revolutionized off road shifting with its seamless shifts both up and down the