dpearce
1 W
http://service.foxracingshox.com/consumers/Content/mtbspringratecalculator.htm
If I type in your parameters here it says to use a 500lb spring, so I would try the one you have out before you buy anything else.
inputs:
weight - 90 + 150 = 240lbs
rear wheel travel = 8.1"
shock stroke = 3"
sag - 25%
And you always have a some wiggle room to go a little stiffer with the preload adjuster, but you can't go the other way. The preload adjustment doesn't actually change your spring rate, it will change the sag characteristics of the bike.
If I type in your parameters here it says to use a 500lb spring, so I would try the one you have out before you buy anything else.
inputs:
weight - 90 + 150 = 240lbs
rear wheel travel = 8.1"
shock stroke = 3"
sag - 25%
And you always have a some wiggle room to go a little stiffer with the preload adjuster, but you can't go the other way. The preload adjustment doesn't actually change your spring rate, it will change the sag characteristics of the bike.