Does anyone know for what weight rider the 2001 400sx comes sprung for? I have recently started trying to do some mx with my 13 year old after a long absense , I'm almost 48, and today I crashed hard on landing a double. Most other jumps the landings seem harsh too. I read that the shock on these bikes was the weakest link but there has to be something better than this. I like the bike otherwise and would like to stick with it. I way about 210 -215 with gear on. If anyone knows what I need to do to this bike to get it to work like a Yamaha or Honda on jumps I would really appreciate it before I kill myself. thanks