The neighbors and I have10 Sumos andhave a pretty good amount of run time, some of it pretty rough.
I have a truck with the following mods(with comments):
- Bearings - the most important upgrade
- Radline oil filled shocks - meh. Wouldn't do it again.
- Steel axles - gets rid of some slop, makes changing wheels easier, but I've broken a few wheels by overtightening the nuts.
- Radline motorpack - slower than the OE motor. Don't.
Steering knuckles are the weak point.We've broken dozens of them.Stock up on plastic replacements or buy the aluminum upgrades. The package with stock replacements often has 2 right or left knuckles rather than one of each, so never order just one. Redcat will replace them but you don't want to wait.
Iwant to say we get at least a half hour or so on a charge. I think my batteries are rated at 2700mah. The radio uses 8AA.