Compatible with 7 speed index    shifters, ISO standard freehubs, and    index narrow chain.
Weight : 190 grams
    Various gear ratios available

Compatible with 8 speed index    shifters, ISO standard freehubs, and    index narrow chain.
Weight : 247 grams
    Various gear ratios available

Compatible with 9 speed index    shifters, ISO standard freehubs, and    index super narrow chain (pin length    6.6mm, e.g., CN-HG-72; CN-HG-92).
Weight : 282 grams
    Various gear ratios available

MARS has its first own 10 speed index cassette sprocket, compatible with 8-9 speed Cassette    Hubs. The cassette spacing is that of Italia pitch, using Italian style 10C chain (with pin length    6.05mm), and Italia Shifter. This model is very durable with our special in-house heat treatment    process.
Not only does this special model exquisite in workmanship, it has superb functionality as well.    Complete with a classy nickel chrome finish, we highly recommend this 10 speed cassette    sprocket to the high-end market.
In addition, we offer different gear ratios for the 10 speed cassette sprocket. Our aim is to    provide high-end cyclists with more choices in selecting the sizes of the cog-sets to meet their    requirements.
    Various gear ratios available