Shimano Ultegra CS-6700 Cassette

No, this is a 10-speed cassette. It is specifically designed for 10-speed road drivetrains and will not index correctly with 11-speed or 12-speed shifters and derailleurs.

The aluminum carrier holds the larger sprockets together, which increases rigidity. This prevents the cassette from flexing under heavy pedaling loads, resulting in more stable and precise shifting.

Most road derailleurs from the 10-speed era can handle an 11-28T range, but you should check your rear derailleur's cage length. If you are using a short-cage derailleur, ensure it is rated for a 28-tooth maximum cog to avoid clearance issues.

Hyperglide uses specially shaped teeth and shift ramps that guide the chain smoothly from one sprocket to the next. This design reduces chain hesitation and noise, allowing for quicker, more reliable shifts even when you are under power.

Yes, it is an excellent option for restoring or maintaining older road bikes that use 10-speed groupsets. It offers period-correct performance and reliability, making it a seamless replacement for worn-out original components.