Key Features
- Multiple Gear Sizes — Choose from 17T, 21T, 26T, 29T, and 64T pinion gears to match your setup.
- Plastic Construction — Made from plastic, these gears are lightweight and suitable for hobby use.
- Model Compatibility — Designed to fit HSP and Redcat models including 94103, 94107, 94111, and 94170 series.
- 3. 2 mm Aperture — Features a 3. 2 mm (0. 12 in) aperture for the motor shaft.
Product Specifications
- Material: Plastic
- Color: As picture
- Aperture: 3.2 mm (0.12 in)
- Applicable models: HSP Redcat 94103 / 94103pro / 94107 / 94107pro / 94111 / 94111pro / 94170 / 94170pro
- Packaging: 1pcs Motor Pinion Main Gears
What It Is / How It Works
This is a set of motor pinion and main gears for hobby-grade RC cars. The gears come in multiple tooth counts—17T, 21T, 26T, 29T, and 64T—so you can select the right gear for your drivetrain. They are made of plastic and feature a 3. 2 mm aperture to fit the motor shaft.
Who It's For / Use Cases
These gears are for hobbyists who own HSP or Redcat RC cars in the 94103, 94107, 94111, or 94170 series. They are useful when replacing worn gears or tuning the gear ratio for different driving conditions. The multiple tooth counts let you experiment with acceleration versus top speed.
How to Use / Care
- Remove the old pinion gear from the motor shaft, noting the tooth count and orientation.
- Slide the new gear onto the motor shaft, aligning the aperture with the shaft flat if present.
- Secure the gear with the set screw or pin, tightening it firmly but not over-torquing.
- Check the mesh between the pinion and the spur gear, adjusting the motor position for smooth rotation.
How to Choose
When selecting a gear, match the tooth count to your RC car's model and intended use. Lower tooth counts (17T, 21T) provide higher torque for acceleration, while higher counts (26T, 29T, 64T) offer more top speed. Ensure the aperture size matches your motor shaft, and verify compatibility with your specific HSP or Redcat model.
Frequently Asked Questions
What tooth counts are available?
This gear set includes 17T, 21T, 26T, 29T, and 64T pinion gears. The 17T and 21T gears are for HSP 94111PRO and 94111 models, while the 26T gear fits 94107, 94170, 94123, and 94103 models.
What is the aperture size?
The aperture is 3. 2 mm (0. 12 in), which fits the motor shaft of compatible RC cars.
Which RC car models are compatible?
These gears are compatible with HSP and Redcat models including 94103, 94103pro, 94107, 94107pro, 94111, 94111pro, 94170, and 94170pro.
What material are the gears made of?
The gears are made of plastic, which keeps them lightweight for hobby use.