marinearmeni
Newbie
Please explain.
"Scale Horsepower" only one way to think about it!"
monkeyracer gave a great explanation

I have looked at the MIPs
Pistons too. They have direct drop in's for the losi 4" crawler shocks. The RPMs take some time to get fit into the BB's. Ive done two full sets and it's worth the time for go fast-ish/trail rigs.
I think RPM's are sized for Traxxas standard shocks, which actually have a larger "bore" than Traxxas's Big Bore shocks, lol.