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Engines and Components› Oiling Systems

RK Racing

RK Chain GB520MXU-130L UW-Ring - Gold

$230.80 $220.16 Save $10.64

SKU: R05K GB520MXU-130

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The RK Racing GB520MXU-130 is a gold UW-Ring sealed motocross and off-road racing chain designed for muddy, sandy, and wet conditions. It features ultra-thin UW-seals, making it suitable for bikes with narrow clearance, and offers triple the life expectancy compared to non-sealed chains.

RK's UW-Ring seals incorporate triple barrier grease protection and anti-debris technology, which is crucial for maximizing chain wear life by preventing debris friction between internal components. The seals also have small contact points to minimize cold start drag.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRK Racing
Part NumberR05K GB520MXU-130

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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