Richy89

Hey i just bught this new 13t and I lost the chart that tells you what pinion and spur is reccomended for a 13t.
So how many teeth should my spur gear have.

My pinion is a 17 tooth and i have a 13t motor and i still have my stock 90 tooth spur.

Aaron Waldron

The stock spur gear wasn't a 90..the 90 tooth spur is orange.

You either have a green (88) or a red (86)

Gear your motor at 18/86 if you can, or 19/88 if you have the green spur gear.

If you do indeed have a 90 tooth spur gear, go with a 20/90.

Richy89

i have a freen spur but on the side it said 90 teeth


What happens if you get a spur with less teeth.
faster, slower??

Aaron Waldron

I'm not sure what to tell ya..all Losi green spur gears are 88 teeth..

Less teeth on a spur gear will give you more top end, but less bottom end.