What’s it going to take to ride that line? It’s steep. It’s rocky. You’ve passed it a hundred times. But not this time. With SRAM's Guide R, you have the power. Proven 4-piston calipers give you smooth, one-finger control. Features like Reach Adjust let you dial it in just right. And Guide perfectly complements other SRAM components and gives you flawless performance on every ride.