X4 kit pinion ??

[lordnikon]

Anyone know what tooth pinion comes with the X4 ?? Cant seem to find mine, stuck a 21 on it from one of my other models with the 85T standard spur and the motor gets quite warm quite quickly

[Dave Dodd]

The kit pinion is 21t, I use 21t in my x4 with a 6.5t motor but I do have a hole cut out under the motor to aid cooling and I use a fan on the esc, on rare occasions I go up to 23t if the track has a long straight.

[lordnikon]

Yeah its a 6.5 in this with 120a hobby wing. Got a hole in the body shell to aid cooing but will experiment some more. Cheers

[lordnikon]

Found the problem. ESC on full setting for advance, sorted now and its much happier, and just as quick :thumbsup: