Originally posted by Skill
The Pro 4 is a very high spec as standard, and doesn't really need anything to make it go better.
However, you'll be looking at things like ceramic bearings, delrin pivot balls, choice of springs, carbon fibre upper link supports. If your track is quite unforgiving then possibly alloy C-hubs and steering knuckles won't go a miss (for durability purposes). Also, I've heard the carbon fibre shaft is good, I've just bought one but have yet to try it.
What about springs, I ordered the Hpi springs
for the Pro-4. I would like to use Tamiya springs. What are the bestfor the Pro-4?
