I ride a 93 RMX 250 with stock suspension. I am 5'11" 174 pounds. I was wondering if the stock suspension is ok for my weight. the type of riding I do is anything from sand pits to rocky tight trails. If you think i shoulds send them to a shop to get worked on. Please tell me the cheapest place. I am only 14 and i want to keep the bike till i am 17.