Originally Posted by Deepsouth

Hi Guys,
About to get the new serpent 120LT and noticed it doesn't come with a spur gear.
Being new to the 1/12th scale arena I have no idea how to work out what my spur gear starting point should be.
I've searched and it seems that most are around the 96 tooth size.
I've got a rollout chart that has 88 96 and 100 spur gears on it. Should I start with these?
I also have no idea how to work out my rollout as I have no idea what it should be and also as far as I know no-one runs 12th at the local track.
I've done some measurements on google earth and the main straight is about 40 meters or 120ft. The track line then is pretty much up to me but there are some technical corners with one or two sweeping corners and then a few hair pins as well.
I'll be running a speed passion cirtix and 13.5 turn v3 ultra sportsman.
Initially it'll be stock and then as I get better i'll mod it up and might upgrade to the gt speedy.
Any help would be greatly appreciated.
Cheers