One of the easiest and most beneficial improvements for the 1/5th scale electric bikes is to change to true 48dp spurs and pinions so you have the choice to get your gear ratio to what you want. Spurs available 90,92,94. They are a direct replacement on the Thunder Tiger Bike and fits both KP and Mclarney gear carriers. Pinions and spurs sold individually in singles
FM003 32 DP Spur Gears 9.5mm Centre Hole
Click on the image and select required spur size from the drop down menu.