JamesNad Posted March 18, 2010 i got a 04 yzf450 that i need fork springs for sense i cut the ones in it for ice riding. im 140 pounds and am going to be riding mostly trails and some tracks and i would say im a top c class rider when i tracks. so what fork springs should i get and where should i get them from? Share this post Link to post Share on other sites
DPW Posted March 18, 2010 Race Tech Type of Riding: Motocross Rider Weight: 140 lbs FRONT FORK SPRINGS Recommended Fork Spring Rate: 0.434 kg/mm (use closest available) Stock Fork Spring Rate: .460 kg/mm (stock) REAR SHOCK SPRING Recommended Rear Shock Spring Rate: 5.14 kg/mm (use closest available) Stock Shock Spring Rate: 5.3 kg/mm (stock) MX-Tech Stock Spring Rates: Fork: 0.45 kgmm Shock: 5.3 kgmm Recommended Spring Rates: Fork: 0.41 kg/mm Shock: 5.0 kg/mm http://racetech.com/ http://mx-tech.com/ both sites have spring rate calculators that give you an idea of what you need.. Share this post Link to post Share on other sites