Shimano Ultegra CS-R8000 Cassette 11S 11-30 drumbeat21-1684 Its optimized ventilation will keep

Its optimized ventilation will keep you cool even on the steepest climbs

Whether you're a commuter

If you ride faster trails and want to focus on descending performance

thicker grips and saddle to give you a solid choice for any outing

For added security

Shimano Ultegra CS-R8000 Cassette 11S 11-30 drumbeat21-1684 Its optimized ventilation will keepAbout Shimano Ultegra R8000 Cassette Features High performance gear combinations provide superior rider choice Specifications Series: Ultegra Average Weight: 232g (11 25T), 251 g (11 28T), 269 g (11 30T), 243 g (12 25T), 300 g (14 28T), 292 g (11 32T) Option 1 11 25T, 11 28T, 11 30T, 11 32T, 12 25T, 14 28T