The ThreeD 520 MXR 3D Drive Chain is designed for 125cc to 500cc motocross motorcycles that demand responsive acceleration and efficient power transmission. This non-sealed chain uses a precise forging process to create a stiff, durable construction that helps improve engine efficiency and maintain smooth power delivery under demanding riding conditions. The gold finish adds a distinctive appearance while supporting the chain’s competition-focused design.
Manufacturer part number 520MXR3D-120G and vendor part number 520MXR3D-120G identify this 120-link ThreeD chain for compatible 520-size motocross applications. Special hollow pins reduce weight without compromising strength, while the lightening holes help disperse heat and clear mud from the chain. An edge-cut inner plate reduces friction and promotes smooth engagement with the sprocket for consistent operation.
Feature: Non-sealed construction minimizes friction for efficient power transfer and responsive performance. Chromium Carbide-coated pin surfaces increase hardness and help reduce chain wear during demanding use. The stiff forged design supports improved acceleration and transmission efficiency, while the lightweight pin and plate construction helps reduce rotating mass. Verify that your motorcycle uses a 520 chain size and that a 120-link chain is suitable for the specific sprocket combination and final-drive setup before installation.
Features:
- Precise forged construction provides a stiff chain for improved acceleration and efficient engine operation
- Lightening holes reduce weight, help disperse heat, and assist with mud removal
- Special hollow pins reduce chain weight while maintaining strength
- Edge-cut inner plates reduce friction and support smooth sprocket engagement
- Non-sealed design minimizes friction for efficient power transmission
- Chromium Carbide pin coating increases surface hardness and helps reduce wear
- Gold finish with 120 links for compatible 520-size motocross applications
- Designed for 125cc to 500cc motocross motorcycles