EK Chains
EK 520 MX Chain
EK 520 MX Chain
Couldn't load pickup availability
The EK 520 MX Chain is a rider-grade replacement chain built for the demands of off-road electric dirt bikes. Running a 520-pitch setup gives you more aftermarket sprocket options and a lighter overall drivetrain compared to larger pitches, while EK's manufacturing tolerances and heat treatment keep you running smoothly for thousands of miles.
Compatible With:
- Surron Ultra Bee (520 chain setup)
- Any e-moto or dirt bike running 520-pitch drivetrain
- Includes clip-style master link for tool-free install
Features:
- 520 pitch × 120 links — standard EK MX specification
- Non-sealed standard roller chain for maximum flexibility
- Gold outer plates for easy visual chain wear identification
- Black inner pivot links for pitch reference
- Quad-stake riveting on every pin for superior lateral strength
- Clip-style master link included — no press tool required
- Cut to length for your specific gearing setup
When it's time to replace your drive chain, don't go back to stock. The EK 520 MX is what actual moto riders use. Ships fast from the USA, straight to your door.
See Also: Warp 9 Jack Shaft Sprocket | Warp 9 Ultra Bee Axle Block | Warp 9 Lockdown Axle Blocks
Frequently Asked Questions
What length chain do I need for the Surron Ultra Bee?
The EK 520 MX comes in 120 links — standard for the Ultra Bee. You may cut links to fit your specific sprocket combination. If you’ve changed gearing (e.g., 14T jack shaft), you may need 1–2 extra links.
Is this a sealed or non-sealed chain?
This is a non-sealed standard roller chain. It's lighter than O-ring chains and works well with regular cleaning and lubrication. For e-moto trail use, a non-sealed chain with proper maintenance will last a long time.
Does this chain include a master link?
Yes — a clip-style master link is included. No press tool or special equipment is needed for installation or removal.
Share
