Hi, i bought a mountain bike from a pawn store for 90 bucks. I've been wanting to get one for a while because i could use a lil exercise and there are trails all over my neighborhood. i used to be into bmx and freestyle bikes in my youth. the bike is a mongoose wing elite pro. i dunno what year it is or if its a good or bad bike. i know the mongoose name has gone downhill after the 80's, but from the research I've been doing for the past few years, it seems this really isn't a bad bike compared to some of the "higher quality" name bikes. i had to fix a flat on the rear tire and the derailleurs need adjusting, but its all in working order. so did i get ripped off or is 90 good for it? how much did one of these cost new? I'd like to find info on this bike or reviews. thanks