High-quality CS-M770 cassette with a 9-speed close-ratio sprocket carrier, offering a wider choice of gear ratios with a lower bottom gear. The sprockets are mounted on the hub body via a lightweight aluminium alloy carrier that supports the sprockets closer to their circumference. The weight of the sprockets has been significantly reduced, while stiffness has been increased, improving gear shifting.
The special 9-speed HG sprocket design ensures fast and reliable shifting – Hyper Glide.

Aluminium sprocket carrier

Aluminium nut

Number of sprockets: 9 HG speeds

Sprocket: titanium/steel,

Sprocket finish: chrome-plated

Compatible chain: Super Narrow HG