Mountain bike riders need to be able to trust their brakes more than anyone to go all out on the trail. The SRAM HS2 Rotor is more powerful than ever, delivering a 7 percent increase in power over the previous version. This is thanks to a new brake track pattern that increases pad traction. It is also thicker than ever and has better heat management. This heavy duty rotor is near silent despite its flawless braking ability. This version has a 6-bolt connection and 220mm diameter. The SRAM HS2 Rotor gives MTB riders confidence to attack the trail.