Originally Posted by
rc-zombies
Hara spring sets
SS-YELLOW-12.8
S-Grey-13.9
M-Black-15.0
H-PURPLE-16.2
SH-RED-17.3
Cyclone/Pro4 spring set:
273(15.3) #6542 BLUE
302(16.9) #6543 SILVER
320(18.0) #6548 PINK
340(19.0) #6544 GOLD
363(20.3) #6545 WHITE
388(21.7) #6546 YELLOW
400(22.4) #6542 RED
For your additional information,
the Hara springs are all progressive rate and those HPI springs listed are linear. You can't compare with them by only the number.
Thanks,