A SRAM Level Ultimate Disc Brake is a thing of wonder: how does it get so much power out of so few grams? The answers probably lie within its carbon fiber lever, super slim two-piston caliper, and years of refinement. But who really knows? It could be from outer space, this brake. At any rate, it's light, powerful, and predictable. Just what you're looking for in a light trail or XC brake!