|
Not particularly often, probably get three or more meetings before the motor starts to feel "soft" and I skim. I don't change the brushes every time, I've only used about three sets all year.
For club racing with the tourer on the slippy floor you don't need to do a huge amount of motor maintenance. When you skim/change brushes, the biggest difference is in the "rip" of the motor, top end is pretty similar.
You need to gear them right to get longer life though, I geared the 19T too high in the buggy at Oxclose and cooked a pair of brushes in less than 10 minutes running.
|