The RK Excel 520SO-114 is a traditional round O-ring drive chain designed for low- to mid-range displacement motorcycles originally equipped with sealed chains. This 520-size steel chain provides a practical balance of dependable performance, smooth power delivery, and affordability for street motorcycles, off-road bikes, and ATVs up to 400cc. The chain is supplied in a natural finish and includes a clip-type master link for convenient installation.
Its nitrile butadiene rubber O-rings help retain internal lubrication while limiting seal drag and power loss during operation. With a tensile strength of 6,900 pounds and a maximum rating of 60 horsepower, the RK Excel 520SO-114 is suitable for applications requiring reliable chain performance in everyday riding and recreational off-road use. Always confirm the motorcycle manufacturer’s recommended chain size, link count, and fitment before installation.
Fitment: Designed for compatible street motorcycles, off-road motorcycles, and ATVs using a 520 sealed chain, with applications up to 400cc and 60 horsepower. Manufacturer part number: 520SO-114. Vendor part number: 520SO-114.
Features:
- Size: 520 O-ring drive chain with 114 links
- Model: 520SO
- Brand: RK Excel
- Manufacturer: RK Excel
- Manufacturer Part Number: 520SO-114
- Vendor Part Number: 520SO-114
- Construction: Steel chain with nitrile butadiene O-rings
- Tensile Strength: 6,900 pounds
- Maximum Rating: Up to 400cc for street, off-road, and ATV applications
- Maximum Horsepower: 60 horsepower
- Master Link: Clip type included
- Finish: Natural steel
- Fitment: Compatible with motorcycles and ATVs originally equipped with a 520 sealed chain