Description
RK 420 Red Chain 106L
The Problem Every Electric Motocross Rider Knows
The RK 420 red chain 106L is the professional-grade drivetrain upgrade for Sur-Ron Light Bee and Talaria Sting riders who want a striking red finish.
The Solution: RK 420 Red Chain 106L
The RK 420 Red Chain (106L) delivers proven RK MX durability with a bold red finish. The 420MXZ series is engineered for high-stress motocross use and trusted by professional riders worldwide for reliable power transfer in the toughest conditions.
Three Steps to a Better Drivetrain
- Order your RK 420 Red Chain from eMotoX Sports, in stock and ready to ship.
- Fit with a chain breaker and rivet tool, no specialist skills required.
- Apply chain lube, set tension, and ride.
What Happens If You Leave It Too Long
A worn chain damages sprockets and can snap mid-ride, turning a simple swap into a costly drivetrain rebuild.
Ride With Confidence
Fresh RK 420 Red Chain means crisp power delivery, a custom look, and a drivetrain running at its best.
Ready to Upgrade?
Add the RK 420 red chain to your basket now — in stock at eMotoX Sports with fast UK delivery.
Technical Specification
| Specification | Detail |
|---|---|
| Brand | RK Excel |
| Part Number | RK-420MXZ-106-RED |
| Length | 106 links |
| Pitch | 420 |
| Finish | Red, corrosion-resistant surface treatment |
| Series | 420MXZ, motocross specification |
| Compatible With | Sur-Ron Light Bee X / L1E; Talaria Sting / Sting R, standard 48T rear sprocket |
Compatibility Guide
| Model | Compatibility |
|---|---|
| Sur-Ron Light Bee X | ✅ Direct fit, standard 13T/48T setup |
| Sur-Ron Light Bee L1E | ✅ Direct fit, standard 13T/48T setup |
| Talaria Sting | ✅ Direct fit, standard 13T/48T setup |
| Talaria Sting R | ✅ Direct fit, standard 13T/48T setup |
| Sur-Ron Ultra Bee | ⚠️ Not compatible, Ultra Bee uses 520 pitch chain |
| EBMX Sirris Ultra Bee | ⚠️ Not compatible, uses 520 pitch chain |
Performance at a Glance
Frequently Asked Questions
Will this fit my Sur-Ron Light Bee?
Yes, direct replacement for Sur-Ron Light Bee X and L1E with the standard 13T/48T sprocket setup.
Does this fit the Talaria Sting?
Yes, the Talaria Sting and Sting R use the same 420 pitch, 106L chain.
Is the red finish durable?
Yes, the RK 420MXZ red finish is a surface treatment applied during manufacturing, providing corrosion resistance alongside the colour.
How many links do I need?
106 links is correct for the standard 13T/48T sprocket combination.
What lubricant should I use?
Use a dedicated MX chain lubricant such as XCP Chain Lube. Apply after every wet ride or every 3–4 dry rides.
Is a masterlink included?
Supplied with a clip link. Use a rivet link for permanent fitment.
How does RK compare to DID?
Both are premium chain brands trusted by professional MX riders, both are excellent choices.
Can I use this on a Sur-Ron Ultra Bee?
No, the Ultra Bee uses a 520 pitch chain.
How do I know when my chain needs replacing?
Replace when you see stiff links, visible rust, or chain lifts more than 12 mm off the rear sprocket at the midpoint.
Does the colour affect performance?
No, the colour is purely aesthetic. The red finish also provides corrosion resistance.
Why Buy From eMotoX Sports?
eMotoX Sports is the UK’s dedicated electric motocross specialist. We stock genuine parts from the brands that matter, DID, RK, Full-E Charged, EBMX, Kenda, Michelin, EBC and more. Every order is dispatched from our UK warehouse, and our team rides the same bikes you do.
- UK stock, no long waits from overseas suppliers
- Specialist knowledge, we ride electric motocross
- Genuine parts, no grey market or counterfeit products
- Fast dispatch, orders placed before 2pm ship same day
Further Reading & Useful Resources
- RK Chain Official Website, Learn about RK’s full range of chains.
- Electric Motocross Drivetrain Parts, Browse all drivetrain parts.
- Factory Image Chain Rivet Kit, Professional chain rivet and cutting tool kit.
- Sur-Ron Chain Adjuster Blocks, Keep your chain at the correct tension.
- XCP Chain Lubricant, Premium chain lubricant.
