Hi im jordan im 14 years old and 5 foot 1 i like mad phases and the onza rip which should i get MAD 1.3 for 109.99 brand new and upgrade it or the MAD 1.2 for 250 and put a rear sprocket on it or get the onza rip and leave it the same i have 350 pounds to spend ive never ridden a trials push bike before i have a bmx and a specialized mountain bike i hqve a sherco 125 trials motorcycle but thats it thanks jord