Since I was disappointed to only get 2880 RPM with the belt drive with a reduction of 0.7 I pulled out the motor controller and adjusted the pot on the bottom left marked MAX, it had about 1/8th of a turn left so i moved it 1/16 which pushed my RPM from 2880 RPM to 3200 RPM there's a torque (current limit/CL) adjust, IR Compensation

Grizzly doesn't want the motor to overheat so they say only a few minutes at the top RPM anyway.

Adjusting the MAX pot also raises the MIN speed.

As always hoss tried it first, his board is different, mines just an smd version.

http://www.kbelectronics.com/manuals/kbic_manual.pdf