The pinion is the small gear on the motor shaft that drives the spur gear. Its tooth count sets your gear ratio, which affects speed and acceleration.
Pinions
RC pinion gears to set your gear ratio for speed or acceleration.

Ruddog 19T 48dp Alu Pinion #RP-0019
SKU: RP-00194,90 €In stock (11)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 19T Mod1 Steel Pinion #RP-0039
SKU: RP-00396,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 20T 48dp Alu Pinion #RP-0020
SKU: RP-00204,90 €In stock (6)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 21T 48dp Alu Pinion #RP-0021
SKU: RP-00214,90 €In stock (9)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 22T 48dp Alu Pinion #RP-0022
SKU: RP-00224,90 €In stock (10)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 23T 48dp Alu Pinion #RP-0023
SKU: RP-00234,90 €In stock (3)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 24T 48dp Alu Pinion #RP-0024
SKU: RP-00244,90 €In stock (2)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 25T 48dp Alu Pinion #RP-0025
SKU: RP-00254,90 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 26T 48dp Alu Pinion #RP-0026
SKU: RP-00264,90 €In stock (2)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 27T 48dp Alu Pinion #RP-0027
SKU: RP-00274,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 28T 48dp Alu Pinion #RP-0028
SKU: RP-00284,90 €In stock (6)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ruddog 29T 48dp Alu Pinion #RP-0029
SKU: RP-00294,90 €In stock (8)Delivery within Estonia 2-3 working days, other European countries 10 days.
Frequent Questions & Answers
What is a pinion gear?
How do I choose a pinion size?
Go smaller for more acceleration and cooler running, larger for more top speed. Match the pitch to your spur gear and check temperatures.
What pitch pinion do I need?
Match the pinion pitch to your spur gear: 48dp, Mod 0.6 or Mod 1 are common. Mixing pitches will not mesh correctly.












