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420 Roller Chain Set (132 Links) with Chain Breaker & 5 Master Links for 50cc–125cc Pit Bike ATV
420 Roller Chain Set (132 Links) with Chain Breaker & 5 Master Links for 50cc–125cc Pit Bike ATV
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Product Overview
Get everything you need for a complete drivetrain overhaul with the Ultimate 420 Roller Chain Maintenance Kit. This comprehensive set features a high-strength 132-link alloy steel chain, providing more than enough length for almost any small-displacement off-road vehicle. Included in the box is a professional chain breaker tool, allowing you to custom-size the chain to your specific frame in minutes. With five extra master links provided, you’ll have plenty of spares for future repairs or adjustments, ensuring you never get stranded during a ride.
Product Compatibility
| Component Type | Specification |
| Chain Pitch | 420 (Standard) |
| Engine Displacement | 50cc, 70cc, 90cc, 110cc, 125cc |
| Vehicle Types | ATVs, Dirt Bikes, Pit Bikes, Go-Karts, Mini Bikes, Scooters, Quads |
| Common Brands | TaoTao, SSR, Coolster, Lifan, Honda XR/CRF 50, Apollo |
| Application | New installations, chain replacements, and custom length setups |
Specifications
| Feature | Details |
| Chain Size | 420 |
| Total Links | 132 Links |
| Material | Heavy-Duty Alloy Steel |
| Kit Includes | 1x 132-Link Chain, 1x Chain Breaker Tool, 5x Master Links |
| Properties | High Tensile Strength, Corrosion Resistant |
Key Features
- Premium Alloy Steel Construction: Forged from high-grade alloy steel for maximum durability and resistance to stretching, ensuring a long-lasting and stable power transfer.
- Customizable Length: The generous 132-link length is "long enough for any use," and with the included chain breaker, you can precisely cut the chain to the exact link count your bike requires.
- Complete Maintenance Bundle: Unlike standalone chains, this kit includes a specialized breaker tool and five extra connector links, providing an all-in-one solution for installation and future maintenance.
- Superior Corrosion Resistance: Treated to withstand the elements, this chain maintains its structural integrity and flexibility even when exposed to mud, water, and trail debris.
- Universal Fitment: Engineered to be the perfect replacement for standard 420 chains found on most Chinese-import pit bikes and entry-level Japanese dirt bikes.
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Fitment FAQ
Will this part fit my specific model and year?
This chain tool is intended for 50cc–125cc Pit Bike ATV. Key physical/spec details from the product data include Chain Size: 420, 50cc, 70cc. 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 chain tool, also compare the chain size range, pin diameter, press/anvil style, handle clearance, and supported roller-chain type.
What models or situations does this part not fit?
Do not order this chain tool 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 chain size range, pin diameter, press/anvil style, handle clearance, and supported roller-chain type. Recheck listed specs such as Chain Size: 420, 50cc, 70cc. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.