The Record UD 10 speed cassettes use the race proven Ultra-Drive system.
Tested under all weather and race conditions at the Tour de France, the Record Ultra-Drive system worked to perfection.
The special sprockets pattern interface perfectly with the rest of the drivetrain components bringing performance to a level of excellence.
+ nickel-chromed finish for steel sprockets
+ Light alloy carrier
+ Supplied without lockring (except for 11-21, 11-23 and 11-25)
+ 188 grams