Firstly, Hi  Im new to trials.  Currently ive got a kona scab, but its not in the best of shape, 4 years old and BB is on its way out. Would it be worth me upgrading it over time or buying a new bike in the next 2 months? The bike i can buy is an old 20" Monty that i dont know how old it is, at least 4 years old. All of you right now are probably thinking "GET THE MONTY!" but, one problem, im 5ft11 and i think that a 20" will be far to small for me, am i right??  Any help will be greatly appreaciated   Cheers  Oh BTW I can get the Monty for £70