Diamondback Bicycles 2015 Sync'r Hard Tail Complete Mountain Bike Reliable hand built 6061-t6 aluminum alloy hard tail frame is great for the trail or park 27.5" DB sl-7 wheel set is light and nimble Rock shod xr32 120mm travel suspension fork takes the edge off rocks and roots Sram 1x10-speed drivetrain w/ race face crank and "narrow wide" ring provides a good gear range without front shifting Tektro hydraulic disc brakes stop on a dime