PROX - 07.RC420130C - 420 MX Chain - 130 Link
When you're pushing a motocross or off-road machine to its limits, your drive chain is one of the most critical components between you and the track. The PROX 07.RC420130C is a 420-size MX chain built for aggressive off-road riding, assembled from Japanese steel using precision manufacturing standards that put it squarely in the same conversation as the best chains in the sport. The 420 size is the go-to spec for smaller-displacement MX and off-road bikes, offering an ideal balance of strength and low rotating mass — and at 130 links, the 07.RC420130C has enough length to work across a wide range of setups and sprocket configurations. Every PROX MX chain starts with surface-treated and hardened pins that resist elongation and wear even under the sustained loading of high-RPM motocross use. The rollers are shot-peened to increase strength and build in resistance to stress fractures that can form over thousands of hard hits. Plates, bushings, and rollers all go through a heat-treat process to raise their hardness and extend service life well beyond cheaper alternatives. The non-seal design keeps rotating weight to a minimum — a real advantage on a race bike where every ounce matters — and the weight-optimized construction overall means you're not adding unnecessary rotational inertia to your drivetrain. The clip-type master link makes installation and adjustment straightforward. Whether you're rebuilding after a broken link on race day or freshening up a practice bike before the season, the PROX 07.RC420130C delivers genuine performance at a price that won't make you hesitate to replace it when the time comes. Sold individually.
Features
- Assembled using Japanese steel
- Surface treated and hardened pins
- Shot-peened rollers for increased strength and stress resistance
- Heat-treated plates, bushings, and rollers
- Weight-optimized design
Specs
- Master Link Connector Type: Clip
- Units: Each
- Product Name: Drive Chain
- Seal Type: Non-Seal
- Chain Size: 420
- Material: Steel
- Number of Links: 130
- Color/Finish: Natural
- Riding Style: Off-Road
Frequently Asked Questions - PROX - 07.RC420130C - 420 MX Chain - 130 Link
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
