I'm 210 lbs in street clothes and ride MX only in 450 intermediate. The bike is a '07 KTM 450 SX. I'm running the stock springs right now but they're clearly too soft (read, I can nearly bottom them out just braking into a corner). KTM only offers one step stiffer in the forks but I've noticed that other companies have even stiffer options all the way through .52 from factory connection. I've done the rate calculators but I'm looking for some more opinions. Also, if anybody has reccomendations on oil height in addition the springs that would be very helpful as well. Thanks for the continued pointers guys!