no offense but your local bike shop probably doesnt know shit about shit. dont go to them ever again with a trials question. unless a solid trials rider works at a shop. the megamo fork is built for a 180mm magura rotor i think. the avid is all the same caliper- you use adaptors to space that one out right. i have a trick to gettting an avid to work if you want to run that one- let me know and i will let you know how to make it work.
also- anything compared to a .243 is going to be light. that frame only weighs in at a scant 7+ pounds. good bike but a bit chunky... expecially for trials.
also- anything compared to a .243 is going to be light. that frame only weighs in at a scant 7+ pounds. good bike but a bit chunky... expecially for trials.