Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
GB420MXZ chains are made for the serious motocross racer looking for the lightest, strongest non O-ring chain. GB420MXZ chains feature chrome-moly steel construction with seamless rollers and bushings, and oversized special alloy pins for added strength. All components are heat-treated using RK's exclusive HIT (Heat Induction Transfer) process. GB420MXZ racing chains are the strongest in their class giving you the best value-performance rating of any MX racing chain in the world today. With a maximum tensile strength rated at 5000 foot pounds and weighing in at only 1.76 pounds, the GB420MXZ is ideal for professional level 50cc to 125cc open class racing. Pin length in mm: 15.7mm. Maximum wear life index: 300. Maximum tensile in pounds/feet: 5000 pounds/feet. Master link type: clip. Weight in pounds per 100 links: 1.76 pounds. Maximum cc: 150cc street/125cc off-road. 24.0 links per foot. 12.7mm pin to pin center. 000 miles of street riding or one year of off-road use..
I installed the RK Racing GB420MXZ chain on my dirt bike, and it’s been amazing for my motocross sessions. The heavy-duty build handles the rough terrain like a champ. Plus, the gold color really stands out on my ride!
E
Emily Nguyen
Slick Chain, But Tough to Connect
The RK 420 series chain looks great and feels strong, but I had a bit of trouble getting it connected. The instructions weren't super clear. Once I got it on, though, it worked like a dream on the track!
Z
Zara Patel
Not What I Expected
Had high hopes for this RK chain, but it stopped working after just a couple of rides. Maybe I got a defective one? It looked good, but I expected better performance for my races. Disappointed.
T
Tyler Johnson
Great Chain, Just Some Shipping Issues
I love the RK Racing chain! It’s been a solid upgrade for my MX bike and the gold finish is a nice touch. The only downside was a delay in shipping; it took longer than expected to arrive. Worth the wait, though!
M
Marcus Lee
Best Upgrade for My Bike!
Switched to the RK GB420MXZ chain last month and couldn’t be happier. It handles the power of my bike perfectly, and the gold color adds a nice flair. Installation was straightforward, and I can feel the difference on the track!
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FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
