Depends on the track you're running on. As a guide, I run a 6.5 with LiPos in my ZX5 with stock spur. On long open tracks I run a 24T pinion, on shorter tight tracks I run a 21T pinion. So anywhere around this should be a good start point.
__________________
Current Weapons: YZ2-CA, YZ2-DT, YZ-4SF.
In The Pits: Yokomo R12C, Yokomo MR4-TC Custom, Yokomo MR4-TC Pro, Yokomo MR4-Rally, Tamiya Blitzer Beetle, Tamiya M05.
Driven: Race Red Fiesta ST 
|