Description Campagnolo's Record UD 10-speed cassettes feature the Ultra-Drive system, where precisely machined and treated sprockets produce accurate shifting that's smooth as silk. Best of all, the Ultra-Drive system ensures perfect interaction between every drivetrain component, providing the highest level of performance in the most demanding race and weather conditions. The four largest cogs are titanium for additional weight savings. 188g (11-21).
Lockrings come with 11-21, 11-23 and 11-25. Other sizes require separate lockrings.
Sizes available
11-21
11-23
11-25
12-23
12-25
13-26
13-29 (requires med. cage double, long cage triple)
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