Originally Posted by
skyrc6
Alright, I see, thanks for the detailed information. Yeah, I guess I'll experiment around with it when the day comes and I hope that 13t pinion should be sufficient, I run 12t pinion on 46t spur for this x-ray xb9e. 12t pinion is more than fast for it. I probably will have to go for 11t pinion. Or maybe switch to a 46t spur if it even fits in eb48.3
The worst case possible would be for me to sell the motor/ESC and eventually get 1900kv motor and go 18/44 or 19/44
Originally Posted by
justpoet
The XRay has to be geared lower on the motor pinion as it has a 12/40 diff ratio vs the tekno 10/40. Your 12 in that should be somewhat similar to 14 in the Tekno with the same motor.
Like justpoet said, the ring and pinions are different. Xray's ratio is 3.33:1 and ours is 4:1. So your 12/46 on the Xray yielded a 12.7778 FDR. To get the on the Tekno with the stock 44 tooth spur you would need a 13.77 tooth pinion, so I'd start with the 14.