---
product_id: 14373473
title: "RK Racing Chain 520-SO-106 (520 Series) Steel 106 Link Traditional Street and Off-Road O-Ring Chain with Connecting Link"
brand: "rk racing chain"
price: "S$143"
currency: SGD
in_stock: true
reviews_count: 8
category: "Rk Racing Chain"
url: https://www.desertcart.sg/products/14373473-rk-racing-chain-520-so-106-520-series-steel-106
store_origin: SG
region: Singapore
---

# 7700 lbs tensile strength Heat-treated hi-carbon alloy steel Advanced Nitrile Butadiene O-ring seals RK Racing Chain 520-SO-106 (520 Series) Steel 106 Link Traditional Street and Off-Road O-Ring Chain with Connecting Link

**Brand:** rk racing chain
**Price:** S$143
**Availability:** ✅ In Stock

## Summary

> 🔗 Ride Strong, Ride Smooth — The Chain That Keeps You Ahead

## Quick Answers

- **What is this?** RK Racing Chain 520-SO-106 (520 Series) Steel 106 Link Traditional Street and Off-Road O-Ring Chain with Connecting Link by rk racing chain
- **How much does it cost?** S$143 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/14373473-rk-racing-chain-520-so-106-520-series-steel-106)

## 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

- • **Unmatched Durability:** Heat-treated alloy steel ensures long-lasting strength for street and off-road adventures.
- • **Maintenance Made Easy:** Traditional O-ring design reduces wear and stretch, minimizing adjustments and downtime.
- • **Precision Engineering:** Seamless rollers and shouldered bushings deliver consistent, reliable power transfer.
- • **Power-Smooth Performance:** Nitrile Butadiene O-rings lock in lubrication, eliminating drag and horsepower loss.
- • **Optimized for 400cc Bikes:** Perfectly rated for sport and off-road bikes up to 400cc, balancing power and endurance.

## Overview

The RK Racing Chain 520-SO-106 is a premium O-ring motorcycle chain crafted from heat-treated hi-carbon alloy steel, delivering a tensile strength of 7700 lbs. Featuring advanced Nitrile Butadiene O-ring seals, it locks in lubrication for smooth power transfer without drag, making it ideal for street and off-road bikes up to 400cc. Engineered with seamless rollers and shouldered bushings, this chain offers superior durability, reduced maintenance, and reliable performance that keeps riders confidently ahead on every ride.

## Description

The 520SO is one of the best O-ring chains in the industry. 520SO chains feature heat treated hi-carbon alloy steel components with seamless rollers and shouldered bushings for strength and durability, and are fitted with O-ring seals. O-ring seals are made from an advanced Nitrile Butadiene composite for maximum performance and wearlife. Nitrile Butadiene O-rings seal in lubrication and deliver smooth power with no O-ring drag or loss of horsepower. Pin Length in mm: 19.9mm. Maximum Wear Life Index: 600. Maximum Tensile in lbs/Ft: 7700lbs/ft. Masterlink Type: Clip. Weight in Lbs per 100 Links: 4.08lbs. Max cc: 400cc Street / 400cc Off-Road. 19.2 Links per foot. 15.875mm Pin to Pin center. 000 miles of street riding or one-year of off-road use..

Review: A Superior Upgrade - This RK Racing Chain is an excellent product from a top-tier brand. Unlike the original equipment manufacturer (OEM) chain on my motorcycle, which stretched and required frequent adjustments, this chain has held up perfectly. The 520-SO series uses traditional O-rings to seal in lubricant, which keeps the chain running smoothly and significantly reduces maintenance. The result is a much safer and more effective chain with very little slack or wear, even after extensive use. I am absolutely pleased with this chain and its performance. It’s a durable, long-lasting product that makes a noticeable difference and provides peace of mind on the road.
Review: Sport bike chain - High quality replacement chain for most sport bikes 400cc and lower. Great application for a 250cc or 300cc sport bike. Installed into 2020 Yamaha r3.

## Features

- The 520SO is one of the best O-ring chains in the industry
- 520SO chains feature heat treated hi-carbon alloy steel components with seamless rollers and shouldered bushings for strength and durability, and are fitted with O-ring seals
- O-ring seals are made from an advanced Nitrile Butadiene composite for maximum performance and wear life
- Nitrile Butadiene O-rings seal in lubrication and deliver smooth power with no O-ring drag or loss of horsepower
- The 520SO has a tensile strength rating of 7700 foot pounds and is rated for bikes up to 400cc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007A8OJX4 |
| Best Sellers Rank | #35,397 in Automotive ( See Top 100 in Automotive ) #28 in Powersports Drive Chains |
| Brand | RK Racing Chain |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,451) |
| Date First Available | February 15, 2012 |
| Exterior | Steel |
| Global Trade Identification Number | 00681319466253 |
| Is Discontinued By Manufacturer | No |
| Item Length | 304.56 Millimeters |
| Item Pitch | 15.88 Millimeters |
| Item Weight | 3.8 pounds |
| Item model number | 520-SO-106 |
| Load Capacity | 7.7E+3 lbf |
| Manufacturer | RK Excel America |
| Manufacturer Part Number | 520-SO-106 |
| Material | Alloy Steel |
| Model | 520SO |
| Specification Met | ANSI B29.1 |
| Strand Type | Single |
| UPC | 681319466253 |

## Product Details

- **Brand:** RK Racing Chain
- **Item Pitch:** 15.88 Millimeters
- **Load Capacity:** 7.7E+3 lbf
- **Material:** Alloy Steel
- **Specification Met:** ANSI B29.1

## Images

![RK Racing Chain 520-SO-106 (520 Series) Steel 106 Link Traditional Street and Off-Road O-Ring Chain with Connecting Link - Image 1](https://m.media-amazon.com/images/I/71vAyJ9jBzL.jpg)

## Questions & Answers

**Q: What size chain will this fit**
A: 520

**Q: Will this fit a 2005 honda crf 450r  ??**
A: I believe the stock chain for those are 520/114 so yes this should fit

**Q: Does the manufacturer specify this as suitable for x type  (520xso)  chains?**
A: Xso.. is an X type chain means o-ring

**Q: Does this come with the connecting master clip?**
A: Be aware that RK chain master links are a press-fit. Even the clip-style require a you to press the link-plate onto the connecting link pins. If you don't have a chain press tool, you can use a C-clamp and a small socket as a press. Once the link-plate is installed then put on the clip with the rounded closed end in the direction of travel.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A Superior Upgrade
*by P***. on August 21, 2025*

This RK Racing Chain is an excellent product from a top-tier brand. Unlike the original equipment manufacturer (OEM) chain on my motorcycle, which stretched and required frequent adjustments, this chain has held up perfectly. The 520-SO series uses traditional O-rings to seal in lubricant, which keeps the chain running smoothly and significantly reduces maintenance. The result is a much safer and more effective chain with very little slack or wear, even after extensive use. I am absolutely pleased with this chain and its performance. It’s a durable, long-lasting product that makes a noticeable difference and provides peace of mind on the road.

### ⭐⭐⭐⭐⭐ Sport bike chain
*by Q***S on December 18, 2025*

High quality replacement chain for most sport bikes 400cc and lower. Great application for a 250cc or 300cc sport bike. Installed into 2020 Yamaha r3.

### ⭐⭐⭐⭐⭐ Chain
*by D***Y on December 20, 2025*

Fine piece

## Frequently Bought Together

- RK Racing Chain 520-SO-106 (520 Series) Steel 106 Link Traditional Street and Off-Road O-Ring Chain with Connecting Link
- JT Sprockets JTR486.42 42T Steel Rear Sprocket , black
- JT Sprockets JTF1539.15 15T Steel Front Sprocket , black

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-14*