Description
Product Overview
The KAMIER 420 Master Link is engineered for high‑performance mini bikes, go‑karts, and small‑engine powersports vehicles. Constructed from hardened steel, each link offers superior tensile strength and resistance to wear, ensuring a secure connection between chain and sprocket. Designed to match 420‑tooth front and rear sprockets, the link measures 4.72 x 3.86 x 0.94 inches and weighs just 13.4 ounces, making it lightweight yet robust. The package includes 420 master links (10 pcs) and a chain breaker tool for quick installation.
Usage
This master link is perfect for riders who demand reliable chain performance on off‑road trails, dirt tracks, and recreational karting. Whether you are upgrading a Coleman Baja Mini Bike, a Trailmaster go‑kart, or a Chinese 4‑stroke pit bike, the KAMIER link provides a hassle‑free solution for chain maintenance and replacement. 
Why Choose Us
KAMIER combines decades of experience in powersports components with rigorous quality control. Each master link undergoes heat treatment and precision machining to meet OEM specifications. Our products are backed by a 4.2‑star rating from 73 verified customers, reflecting consistent satisfaction with durability and fit. Choosing KAMIER means investing in a component that resists stretching, reduces chain slap, and prolongs overall drivetrain life.
Key Features
- Hardened steel construction for maximum strength and wear resistance
- Exact fit for 420‑tooth front and rear sprockets on mini bikes and go‑karts
- Includes 10 master links and a chain breaker tool for easy installation
- Lightweight design at only 13.4 ounces per link
- Compatible with a wide range of brands including Coleman, Trailmaster, and many Chinese pit‑bike models
FAQ
Can these master links be used on 428 sprockets?
No, the KAMIER 420 master link is specifically sized for 420‑tooth sprockets and will not fit 428 sprockets.
Do I need any special tools to install the link?
The package includes a chain breaker tool, but a standard chain pin press can also be used for installation.
What is the recommended torque for tightening the link?
Secure the link by pulling the chain tight and snapping the pins into place; no torque specifications are required.
Is this link suitable for high‑performance racing applications?
Yes, the hardened steel design provides the strength needed for competitive racing while maintaining lightweight characteristics.
How many links are included in the package?
The box contains ten 420 master links and one chain breaker tool.
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