Campagnolo's Ultra-Drive cog profiling and beveling is an essential element in the unparalleled shifting precision of the Record gruppo. The high six cogs are made from nickel-plated steel (the nickel plating gives them added durability), and the low 4 cogs are titanium mounted to two lightweight... read more

The 13/29 cassette ratio is ideal for riders who find themselves amongst steep and/or long climbs where a 26t low cog doesn't cut it, but who simply can't stomach the idea of owning a triple-ring crankset. Please note that you'll need to equip your bike with a mid-cage rear derailleur to use this... read more

If you're looking to build a super-light project bike, a full titanium cassette is a must-have. Its teeth have the same Ultra-Drive profile as the Steel/Ti cassette so you'll get the same precise and smooth shifting you expect from Record. 156g. Please note that Campagnolo packages these... read more

Chorus cassettes use the same Ultra-Drive system as Record, making its shifting precise and fluid, especially thanks to the careful machining and treatments given to the sprocket teeth. The special sprocket pattern interfaces perfectly with the rest of the Chorus drivetrain components, especially... read more

The bottom 4 cogs on the Dura-Ace 10-Speed cassette are made from titanium -- unlike the 2 (or sometimes 3, depending on ratio) you got in the 9-speed era. These Ti cogs get an improved surface treatment to give them a 30% increase in wear. They are compatible with all 8 and 9-speed Shimano hubs.... read more

Thanks to its use of thin sprockets and spacers, the Ultegra CS-6600 cassette's 10-cog stack is no thicker than the CS-6500 9-speed version. It's fully compatible with a Dura Ace 10-speed drivetrain, and it's also compatible with any Shimano 9-speed generation hub, as well as standard 130mm... read more

These bigger ratios cost a few dollars more than the 11/21 and 11/23 because their low cogs require the use of a bit more titanium in the production process. The bottom 4 cogs on the Dura-Ace 10-Speed cassette are made from titanium -- unlike the 2 (or sometimes 3, depending on ratio) you got in... read more

When SRAM first leaked out pictures of their Red gruppo, nothing caused a bigger buzz than the design of their new OG 1090 10-speed cassette. It's made using "PowerDome" technology, meaning that the top 8 cogs are CNC'd from a single piece of chromoly steel. If you've ever pulled a Record... read more