Yeah Racing Pinion Gear Super Hard Combo set (48P 15T-20T 6pcs #MG-48015-020)
The motor gear series including 2 major types of Pitch Pinion - the 48 Pitch Pinion and the 64 Pitch Pinion. The 48 Pitch Pinion available from 15 teeth to 38 teeth. The 64 Pitch Pinion available from 17 teeth to 52 teeth. The Yeah Racing Aluminum Motor Gear are made by 7075 high quality aluminum with titanium coated surface.
For: 1:10 EP, fit on 540 Motor
Material: 7075 Aluminum
48 Pitch Pinion 15 Teeth (1 Pc)
48 Pitch Pinion 16 Teeth (1 Pc)
48 Pitch Pinion 17 Teeth (1 Pc)
48 Pitch Pinion 18 Teeth (1 Pc)
48 Pitch Pinion 19 Teeth (1 Pc)
48 Pitch Pinion 20 Teeth (1 Pc)
Set Screw (6 pcs)
How to calculate Final Gear Ratio?
For example, if your car has the following setting:
Motor Gear: 25
Spur Gear: 84
Gear Differential: 38
Firstly, we need to calculate the 'Motor Gear to Spur Gear Ratio', divide 84 by 25 equal to 3.36. Then we need to calculate the 'Pulley to Gear Differential Ratio', divide 38 by 19 equal to 2. Finally, the 'Final Gear Ratio' is 3.36 x 2 = 6.72.
Motor Turn used based on Final Gear Ratio:
The above guideline is for reference only. The recommended motor turn may vary depending on different brands. More information can be found on motors' official websites.