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Exterior Components› Body Panels and Components

RK Racing

RK Chain GB420MXZ4-100L - Gold

$65.77 $59.19 Save $6.58

SKU: R05K GB420MXZ4-100

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Non-Returnable Item
INSTALL DIFFICULTY
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Description

The RK Racing GB420MXZ4-100 is a 420-type, non-sealed, gold-colored racing chain designed for off-road applications like supercross and motocross. It features chromoly steel construction with seamless rollers and bushings, and RK's Chromized pins to enhance wear resistance and absorb shock loads. The chain is heat-treated using RK's HIT (Heat Induction Transfer) process.

This chain has a maximum tensile strength of 4,980 lbs and is rated for up to 150cc off-road use or 40 HP. It includes a clip-type master link and has a maximum chain width of 17.2mm.

Fitment

Fitment Guaranteed

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

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Specifications

BrandRK Racing
Part NumberR05K GB420MXZ4-100

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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