Trail descents ask a lot of a brake lever, and Servo Wave action in the Deore BL-MT501 Hydraulic Disc Brake Lever delivers high-power braking to slow a mountain bike when the trail drops away. A 2-finger lever leaves the rest of the hand on the grip, and tooled reach adjustment sets how far the lever sits from the bar to suit the rider's hand. What Our Gearhead(R) Experts Are Saying:"Rolling into a steep, loose descent, I keep two fingers on the lever and the rest of my hand wrapped around the grip. The Servo Wave action puts out the high-power braking I want there, and the reach I set with a tool before the ride keeps the lever where my fingers fall."