---
product_id: 40066544
title: "RK Racing Chain GB420MXZ-100 (420 Series) Gold 100 Link Heavy Duty MX/SX Racing Non O-Ring Chain with Connecting Link"
brand: "rk racing chain"
price: "₨134756"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/40066544-rk-racing-chain-gb420mxz-100-420-series-gold-100-link
store_origin: LK
region: Sri Lanka
---

# RK's exclusive HIT heat treatment 5000 ft-lb tensile strength Lightweight 1.76 lbs per 100 links RK Racing Chain GB420MXZ-100 (420 Series) Gold 100 Link Heavy Duty MX/SX Racing Non O-Ring Chain with Connecting Link

**Brand:** rk racing chain
**Price:** ₨134756
**Availability:** ✅ In Stock

## Summary

> 🏁 Dominate the track with the gold standard in MX chains!

## Quick Answers

- **What is this?** RK Racing Chain GB420MXZ-100 (420 Series) Gold 100 Link Heavy Duty MX/SX Racing Non O-Ring Chain with Connecting Link by rk racing chain
- **How much does it cost?** ₨134756 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/40066544-rk-racing-chain-gb420mxz-100-420-series-gold-100-link)

## Best For

- rk racing chain enthusiasts

## Why This Product

- Trusted rk racing chain brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherweight Champion:** At just 1.76 pounds per 100 links, it’s the lightest chain designed for pro-level 50cc to 125cc motocross racers.
- • **Race-Ready Reliability:** Rated for 5000 foot-pounds tensile strength, this chain guarantees you stay ahead without compromise.
- • **Unmatched Strength, Unrivaled Speed:** Engineered with chrome-moly steel and oversized alloy pins for peak durability under extreme racing conditions.
- • **Precision Engineering for Pro Racers:** Seamless rollers and bushings deliver smooth power transfer and reduced friction for faster lap times.
- • **Heat-Treated for Hardcore Performance:** Exclusive HIT process ensures maximum wear resistance and longevity on the toughest tracks.

## Overview

The RK Racing Chain GB420MXZ-100 is a premium, non O-ring motocross chain crafted from chrome-moly steel with oversized alloy pins and seamless rollers. Heat-treated via RK’s exclusive HIT process, it offers a maximum tensile strength of 5000 foot-pounds while weighing only 1.76 pounds per 100 links. Designed for professional 50cc to 125cc MX/SX racing, it delivers unmatched durability, lightweight performance, and superior wear resistance, making it the top choice for serious racers seeking the ultimate competitive edge.

## Description

RK Racing Chain GB420MXZ-100 (420 Series) Gold 100 Link Heavy Duty MX/SX Racing Non O-Ring Chain with Connecting Link

## Features

- GB420MXZ chains are made for the serious motocross racer looking for the lightest, strongest non O-ring chain
- GB420MXZ chains feature chrome-moly steel construction with seamless rollers and bushings, and oversized special alloy pins for added strength
- All components are heat-treated using RK's exclusive HIT (Heat Induction Transfer) process
- GB420MXZ racing chains are the strongest in their class giving you the best value-performance rating of any MX racing chain in the world today
- With a maximum tensile strength rated at 5000 foot pounds and weighing in at only 1.76 pounds, the GB420MXZ is ideal for professional level 50cc to 125cc open class racing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Load Capacity | 22241.36 N |
| Brand | RK Racing Chain |
| Material | Metal |
| Recommended Uses For Product | motocross and supercross racing |
| Specification Met | ANSI B29.1 |
| Tensile Strength | 4.98E+3 Pounds |
| Item Length | 1.2E+2 Inches |
| UPC | 681319434160 |
| Global Trade Identification Number | 00681319434160 |
| Manufacturer | RK Racing Chain |
| Model | GB420MXZ-100 |
| Item Weight | 1.81 pounds |
| Item model number | GB420MXZ-100 |
| Is Discontinued By Manufacturer | Yes |
| Manufacturer Part Number | GB420MXZ-100 |

## Product Details

- **Load Capacity:** 22241.36 N
- **Brand:** RK Racing Chain
- **Material:** Metal
- **Recommended Uses For Product:** motocross and supercross racing
- **Specification Met:** ANSI B29.1

## Images

![RK Racing Chain GB420MXZ-100 (420 Series) Gold 100 Link Heavy Duty MX/SX Racing Non O-Ring Chain with Connecting Link - Image 1](https://m.media-amazon.com/images/I/61ix4ac5POL.jpg)

## Available Options

This product comes in different **Color, Size** options.

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**Shop now:** [https://www.desertcart.lk/products/40066544-rk-racing-chain-gb420mxz-100-420-series-gold-100-link](https://www.desertcart.lk/products/40066544-rk-racing-chain-gb420mxz-100-420-series-gold-100-link)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-04*