Just when Shimano and Campagnolo thought they had this bicycle component hegemony thing figured out, SRAM burst onto the scene and zapped their plans. A few years back they were the Rookie of the Year, but SRAM is now a component All Star. Technology? SRAM offers the crispest shifting imaginable for both your road bike and your mountain bike. SRAM shift levers are like an extension of your brain. SRAM rear derailleurs, front derailleurs, cranksets, and bottom brackets cohere to provide telepathic drivetrain performance.