The X0 2 x 10 Speed High Clamp Bottom Pull Front Derailleur from SRAM has a wide range 2x 10 shifting capability with X-Glide front shifting technology. This is a dedicated 34t bottom pull front derailleur designed to optimize performance. Available in Silver/ Black only in either 31.8mm or 34.9mm clamp sizes. The benefit of the X-Glide drivetrain is simple, yet, when you think about it, incredibly impactful to the way you ride. Flawless shifting means you'll never again compromise your speed & power in unpredictable off-road terrain.