The sunrace CSMZ903 12spd cassette is a lightweight and value packed 12 speed cassette for Shimano HG fit freehubs.

With an 11-51T range there is a total gear range of 464%.

The main body of the cassette uses a durbale steel construction while the largest 3 cogs are constructed from 7075 aluminium to reduce weight.

Specifications:

Fitment: Shimano/Sram HG 10/11spd compatible

Speeds: 12spd

Gear Ratio: 11-13-15-17-19-21-24-28-33-39-45-51

Color: Silver with Red anodized spider and lockring.

Weight: 497g