Help : Bike Sizing !!!
Ok I am Gonna purchase a new bmx bike and am either going to get a specialized vegas dirt boy ( WITH A 19 " TT ) or a Hyper Lp PRo Model ( WITH A 21" TT ) Now The Only Problem is that i am 5'6, and not sure on the pysical size of the 19 " and the 21 " and is there much differance ?? thanx ..