Rear Shock spring For KX250F KX450F

YSS High Performance Shock Spring.

Getting the spring rate right will make a huge difference to the handling of your bike, and will often help reduce the effect of bumps.

KX250F (06-10) 

KX250F (11-21) Second Spring Chart

KX450F (09-14) (19-21) Third Spring Chart

KX450F (15-18) Second Spring Chart