Gearing: 6.5 in B4
 

As the title says, anyone know what pinion I should use on a stock spur using a 6.5 motor?

i got a rtr bl b4 off here 5.5t ezrun = 6.5 my gearing was a 81spur and 20 pinion the car came like this i have not tryed any diffrent gearing coz it fast as hell

I used a 22 on a reasonable sized indoor track on a 78 tooth spur, thats a Speed Passion 6.5 motor. Maybe a reasonable starting point, not sure what size the kit spur is tbh!

Hi Dave, We run 81/23 without any problems. But as always check your temperature after a gear change. running a GTB+ 6.5velocity Hope this helps.

i ran a 21t,stock spur using a losi 6.5,car was plenty quick enough for a medium sized hall,may use a 23 at the players.

Im using stock gearing with my xcellorin 6.5 doesnt get too hot (warm to touch but not massively hot) Batteries similar (nimh) warm to touch so imo just right and that was for Formby on last sunday and Ribble on wednesdays

Id start on a 23 at worksop mate. I run 24 on a 78 spur with a 7.5.

gearing
 

i have a losi 6.5, i use a 23 pinion with standard spur.never had any trouble at all

Losi 6.5
 

81/20 for indoors and 81/22 for outdoors. Runs cool as a cucumber, but I am a bit slow:(

Running novak 6.5r and gtb, i use a 19/81 on a small tight grass/astro track