I have just got an X-ray T1FK and i'm running in Stock class. I would like to get the gear range of 6.4 - 6.7 but i'm unsure of what size to get. 89/24 is to small and the motor hits the belts.
the Internal Ratio is 1.77.
Should i go to 64 pitch, if so what gears Spur/pinon.