EK 520 MX Chain this shirt delivers all-day comfort

this shirt delivers all-day comfort whether you’re wrenching on upgrades

Other electric dirt bikes using a 15mm rear axle (verify length before install)

Why Upgrade to the RFLOXA Ultra 43

Direct Bolt-On Fit: Installs easily with no frame modification

Upgrade your drivetrain performance and reliability with our Hardened Tool Steel Jackshaft Sprocket

EK 520 MX Chain this shirt delivers all-day comfortEK 520 MX Chain Performance Upgrade for Surron Ultra Bee & More Upgrade your Surron Ultra Bee, Talaria, or any 520 compatible e moto with the EK 520 MX Chain, built for riders who demand strength, reliability, and smooth power transfer. Designed as a non sealed standard roller chain, this setup offers reduced drag and lighter weight ideal for performance builds where efficiency and throttle response matter most. Each chain is constructed with gold