The RK Excel 520SO-112 is a traditional round O-ring drive chain designed for low- to mid-range motorcycles and powersports applications. Built for dependable street and off-road performance, this 520-size chain uses a nitrile butadiene O-ring seal to retain lubrication, reduce contamination, and support smooth power transfer with minimal seal drag. Its steel construction and natural finish provide a practical balance of durability, efficiency, and affordability.
The RK Excel 520SO-112 includes 112 links and a clip-style master link for straightforward installation when properly matched to the motorcycle’s original chain specification. It is suitable for motorcycles up to 400cc and applications rated up to 60 horsepower, including select ATVs and off-road vehicles. Confirm the vehicle manufacturer’s chain size, link count, and sealed-chain requirements before installation to ensure proper fitment.
Fitment: Designed for low- to mid-range motorcycles, street motorcycles, off-road motorcycles, and ATVs originally equipped with a sealed 520 chain. This chain is intended for applications up to 400cc and should be used within the manufacturer’s recommended power and load limits. The product is supplied in a natural steel finish and is identified by manufacturer part number 520SO-112 and vendor part number 520SO-112.
Features:
- Chain Size: 520
- Link Count: 112 links
- Chain Type: Round O-ring sealed drive chain
- Construction: Steel
- Seal Material: Nitrile butadiene
- Tensile Strength: 6,900 pounds
- Maximum Application Rating: Up to 400cc for street, off-road, and ATV use
- Maximum Horsepower: 60 horsepower
- Master Link: Clip type included
- Finish: Natural steel
- Brand: RK Excel
- Manufacturer Part Number: 520SO-112
- Vendor Part Number: 520SO-112