eDirtyBike 219 RK O-Ring Primary Belt to Chain Conversion Kit for Surron Light Bee / LBX

Eliminate belt slippage and failure for good with the eDirtyBike 219 RK Sealed O-Ring Primary Chain Drive Conversion Kit for the Surron Light Bee and LBX. Engineered for riders who demand reliability on long group rides, trail sessions, and high-output builds, this kit replaces the stock belt system with a proven RK 219 KRO sealed chain — the same chain behind over 50 World Kart Championships. Available in Blue, Orange, and Green.

Why Upgrade?

Primary belt slippage is a common failure point on the Surron Light Bee. Once a belt snaps, your ride is over. The eDirtyBike chain drive system eliminates that risk entirely, delivering a quieter, longer-lasting, and more efficient drivetrain with less maintenance than you'd expect.

Features

• RK 219 KRO sealed O-ring racing chain — proven in World Kart Championship competition
• Hardened steel sprockets for reduced wear and extended service life
• 20% lighter and more efficient than the stock belt system
• Maintains stock gear ratio — no tuning changes required
• Better acceleration and longer run time
• Minimized drag and reduced chain noise for a near-silent ride
• Includes installation video, buyer & maintenance guide, and tool recommendations
• Available in Blue, Orange, and Green anodized finishes

Chain Selection Guide

• 219 KMC Standard Chain — On-road and light off-road, stock power
• 219H RK O-Ring / Non-O-Ring — On-road and off-road up to 16kW
• 420 Sealed X-Ring — Off-road over 16kW
• 420 Non-O-Ring — Racing only (very loud)

Specifications

• Brand: eDirtyBike
• Chain Type: RK 219 KRO Sealed O-Ring
• Sprockets: Hardened Steel
• Fitment: Surron Light Bee / LBX
• Available Colors: Blue, Orange, Green
• Weight: 1.3 lbs per kit
• SKUs: Blue: EP-PCD-GS-219RK-BL | Orange: EP-PCD-GS-219RK-OR | Green: EP-PCD-GS-219RK-GN