EMAXX/ E-revo/ Summit 技術交流區, 歡迎大家貼你既Monster Truck

Any C hing can tell me the gearing ratio for summit with MMM and 2 3s lipo, now I just use the stock pinion gear and spur gear, however, I think the speed is not so fast as I intended.
I just find the pinion gear is 14T and the spur gear is 68
I find 17,18,20 T in the part list  for pinion gear and 62 65 T for the spur gear,
which combination is suitable for the MMM system in the summit?Thanks a lot!

ching, I am the one who play the summit last night, because of lack of battery, I leave early
I have to buy more 11.1v lipo and play with you all next time

from your pictures showed, I think it was tore by the metal bars(black and yellow) that placed on the track. its really danger for the monsters' tyre

各位ching,想問下新款Emaxx 3908個牙差箱(differential)可唔可以用係舊款Emaxx 3906, 希望有人幫幫忙