Originally posted by NMRCDude
1 more question...
The lower the final gear ratio (6.3), the more bottom end?
Also, what pitch is this...
What Sushi Boy Said.
Well you said you had a 90T spur so I assumed it was the Tamiya 0.4 pitch which is close enough to 64pitch, so you will need similar pitch pinions, the Tamiya ones are very nice and light I use them.
Tony