Originally Posted by
hipwell
I have just noticed that the bd7 belt is 172 teeth. Tamiya is 171. Is this a big enough difference to mess up front and rear wheel speeds?
It does not mess up your your front and rear speed.
It stays the same.
That only changes when you alter the number of teeth front or rear from your pulleys.
You just need to see if the bd7 belt can be set tight enough.