Originally Posted by dodgeguy
Hot Bodies website needs to be updated for hop ups. Does anyone know the spring rates for the HB springs or HPI springs?
HPI-Racing Spring set: Cyclone/Pro4 #75175
Blue 15.3lbs.
Silver 16.9lbs.
Pink 18.0lbs.
Gold 19.0lbs.
White 20.3lbs.
Yellow 21.7lbs.
Red 22.4lbs.