Shimano ULTEGRA CS-6700 10-Speed Cassette 12-30T

The Shimano 10-speed Ultegra cassette CS-6700 allows exact shifting, but without much effort. Shimano has even improved the accuracy of the gear selection by changing the sprocket design. Despite all its user-friendliness, the CS-6700 cassette guarantees maximum precision during shifts. In combination with Hyperglide (HG) chains, HG sprockets ensure fast and responsive indexed shifting. HG sprockets have specially positioned shift ramps and tooth profiles that improve chain control during shifting. Fast, fluid and silent shifting is the result. Conventional sprockets cause the chain to ride up and over the gear teeth before engaging the sprocket. HG sprockets guide the chain quickly and directly to the next sprocket without override.