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. Your original purchase of RK sealed-ring chain is warranted to be free of defects in material and workmanship for 20,000 miles of street riding or one year of off-road use. There is absolutely no warranty of any kind for an RK chain used in any racing competition.
The RK Racing chain itself is pretty solid and was easy to install on my bike. I love the gold finish; it really stands out. However, it took longer to arrive than I expected, which was a bit disappointing.
H
Haruto Tanaka
Great Chain, But Lacks Instructions
I’m happy with the RK GB420MXZ chain for the most part—it's tough and looks good. But I struggled a bit with the setup since the instructions weren’t super clear. Just took me longer to get it right. Still, it works well now!
M
Miguel Rodriguez
Sturdy Chain for My Bike
I bought this RK Racing chain for my MX bike and it's been great so far. The gold color looks awesome and the heavy-duty design feels solid. Installation was straightforward and it fits perfectly with my setup. Definitely a noticeable boost in performance!
S
Sofia Silva
Didn’t Last as Expected
I was disappointed with the RK Racing chain. It worked fine at first, but after just a few rides it started showing signs of wear. The gold finish chipped off quickly, and I’m worried about its longevity. Not what I hoped for.
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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.
