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Exterior Components› Body Panels and Components

RK Racing

RK Chain GB420MXZ-118L - Gold

$61.45 $55.31 Save $6.14

SKU: R05K GB420MXZ-118

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

Moderate — 2–4 hours

Description

Part #: GB420MXZ-118

Heavy duty MXZ Mini Racing chains made for mini MX and SX racing. MXZ chains feature Chromoly steel construction with seamless rollers and bushings, and oversized special alloy pins for added strength.

MIA's Description

The RK Racing GB420MXZ is a 420-series heavy-duty drive chain designed for demanding applications. It features solid rollers, solid bushings, and quad-riveted pins for enhanced durability and wear resistance. This gold-finished chain offers an average tensile strength of 4,980 lbs and is pre-stretched from the factory to reduce adjustment time and ensure better load distribution.

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 GB420MXZ-118

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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