Due to the changed internal transmission ratio the front and rear wheels are having different speeds. The rear wheels are faster for easier drifts.
The kit contains center pullys with 18, 20 and 22 teeth. The front drive pully has 40 teeth, the rear one has 30 teeth. The front belt has 115 teeth, the rear one 111 teeth.
Attention regarding TA-05IFS-R and TA-05 Ver.II Chassis: For the rear diff please use Tamiya 50880 TA05 Diff Plates.