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420 Chain Master Link for 90cc–125cc Pit Bike, XR/CRF, & ATV
420 Chain Master Link for 90cc–125cc Pit Bike, XR/CRF, & ATV
4.5 / 5.0
(2) 2 total reviews
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Product Overview
The 420 Standard Master Link is a high-reliability connecting link designed for the most common chain size in the pit bike and small ATV world. Whether you are performing a routine chain replacement or an emergency trailside fix, this clip-style link provides a secure, tool-free connection. Engineered for the specific demands of off-road riding, it offers stable characteristics that ensure your chain stays together under heavy acceleration and through rough terrain.
Product Compatibility
| Component Type | Specification |
| Chain Pitch | 420 |
| Engine Displacement | 50cc, 70cc, 90cc, 110cc, 125cc |
| Japanese Models | Honda XR50, CRF50, XR70, CRF70, CRF110 |
| Chinese Brands | TaoTao, SUNL, Roketa, Apollo, SSR, Coolster |
| Vehicle Types | Pit Bikes, Dirt Bikes, Quads, ATVs, Buggies |
Specifications
| Feature | Details |
| Link Model | 420 |
| Material | High-Tensile Hardened Steel |
| Closure Style | Split-Clip (Spring Clip) |
| Properties | High Wear Resistance & Impact Strength |
| Installation | Manual "Press-and-Clip" (No Rivet Tool Required) |
Key Features
- Universal 420 Fitment: Designed to meet standard 420-pitch specifications, making it a perfect match for both Japanese (XR/CRF) and Chinese import drivetrains.
- Tool-Free Installation: Features a user-friendly spring-clip design that allows for rapid installation and removal, saving you time during maintenance or urgent repairs.
- Stable Performance Characteristics: Manufactured to ensure high reliability, this link maintains consistent chain tension and reduces the risk of drivetrain failure during high-speed operation.
- Hardened Steel Construction: Built to withstand the torque and abrasive grit found in off-road environments, effectively resisting stretching and surface wear.
- Perfect for DIY Maintenance: An essential component for any rider’s toolkit, facilitating easy chain length adjustments and cleaning without the need for a professional mechanic.
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Fitment FAQ
Will this part fit my specific model and year?
This replacement part is intended for 90cc–125cc Pit Bike, XR/CRF, & ATV. Key physical/spec details from the product data include 50cc, 70cc, 90cc. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. For this replacement part, also compare the OEM number, dimensions, connector or mounting style, engine/model year, and product photos.
What models or situations does this part not fit?
Do not order this replacement part for machines outside the listed compatibility, or for units with different OEM numbers, dimensions, mounting points, connectors, or year-specific configurations. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the OEM number, dimensions, connector or mounting style, engine/model year, and product photos. Recheck listed specs such as 50cc, 70cc, 90cc. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
Worked perfect. Put on my go kart and go around 30 mph and the chain master link has never fallen out since I put this on.
Great product, quick delivery