Diamondback Bicycles 2015 Podium 650c Complete Youth Road Bike, One Size, Dark Brown 6061 aluminum alloy frame with replaceable derailleur hanger for durability Junior aero alloy straight blade fork delivers confidence inspiring handling Shimano 8-speed shifters and derailleurs provides wide range of gears for growing legs 650C wheels roll fast to keep up with mom and dad Alloy drop bar