Dual Speed RC Gearbox With Servo And Internal Gears For 1 To 10 RC Crawler Upgrade Parts TRX4 TRX6 Built Tough Durable Metal Gears With Lightweight Plastic Housing High Torque Transmission System

Durable 2-Speed RC Gearbox with Servo and Internal Gears
✔️ 2-speed gearbox with metal gears, lightweight plastic housing

This compact 1/10-scale dual-speed gearbox upgrade fits 1/10 RC crawlers, especially TRX-4 and TRX-6. It combines a lightweight plastic housing with metal gears for strong torque and reliable shifting, while maintaining a simple, non-destructive install in compatible chassis.

✅ Material: Plastic housing with metal servo gear and metal internal gears
✅ Net weight: about 147 g
✅ Suitability: fits 1/10 TRX-4 TRX-6 crawler cars
✅ Package: 1 piece 2-speed gearbox with servo, color Black

💡 What is a 2-speed RC gearbox used for in hobby crawlers? A handy way to balance torque and speed across rough terrain.
- Increases torque for steep climbs
- Allows gear changes for varied terrain
- Improves motor efficiency and reduces wear