All of us love Shimano cassette for lower price and long life, it was reason why we created solution for it. During last 6 months testing we launched many amendments to give you the best cassette cog on the market.
Rocket Sprocket is lightest and stiffest big ring among all products from other manufacturers. Made cnc machined 7075-T6 FORTAL aluminum plate, anodising and laser making detail. So we are very proud to introduce you Rocket Sprocket 42T weighing less than 80 grams fits Shimano cassette 10 speed 11-36.