Gear Range: 12, 13, 14, 15, 16, 17, 19, 21, 23, 25
Weight: 194 g.

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 Ultra-Drive system makes shifting more precise and fluid, especially thanks to the careful machining and treatments that the sprocket teeth have undergone. The special sprockets pattern interfaces perfectly with the rest of the drivetrain components, especially the chain and chainrings, thus bringing performance to levels of outstanding excellence.
Please Note: The cassette lock-ring is not included.

Item Code: Y4A-10-225