Diamondback Bicycles 2015 Recoil Comp Full Suspension Complete Mountain Bike Hand built 4-inch travel 6061 t-6 aluminum alloy full suspension frame is light and durable Optimized single pivot with sealed cartridge bearings performs smoothly Rockshox monarch r rear shock and SR sun tour 100mm fork handle trail obstacles Shimano Altus 8-speed drivetrain with SR sun tour cranks provides reliable shifting Shimano hydraulic disc brakes