The United Recruit RN4 2012 BMX Bike is a brand new model in the Recruit line up, which now means United have a bike with a 21" top tube at a more affordable level than ever before. Carefully colour matching graphics and accents keep this bike simple and easily customised by changing only one or two low value items. The top tube gusset and extra cromo mean this is strong enough to withstand the pressure that someone who needs a 21" TT would put on it.