35 Chain vs 420: Which Chain Is Right for Your Bike?
When it comes to motorcycle maintenance, the chain is arguably the most critical component for transferring power from the engine to the rear wheel. However, for riders who are building a custom bike, racing, or restoring a classic, the choice between a **#35 chain** and a **#420 chain** can be confusing. Both serve specific purposes, but they are not interchangeable. In this detailed guide, we will break down the physical differences, performance metrics, and use cases to help you decide which chain is right for your bike.
## Understanding Chain Sizing and Dimensions
Before diving into the specifics of **35 chain vs 420**, it is essential to understand what these numbers actually mean. The numbering system for roller chains is standardized by the American National Standards Institute (ANSI). The first digit(s) indicate the pitch, or the distance between the centers of two adjacent pins, measured in eighths of an inch.
– **#35 Chain:** The “35” designation means the pitch is 3/8 of an inch (0.375″). The chain width is narrower, specifically 3/16 of an inch between the inner plates.
Keyword: 35 chain vs 420
– **#420 Chain:** The “420” designation indicates a pitch of 4/8 of an inch, which simplifies to 1/2 inch (0.500″). The width is also 1/4 inch, making it significantly wider and stronger.
The .500″ pitch of the 420 chain is standard for most street bikes and off-road motorcycles. In contrast, the 3/8″ pitch is often found in go-karts, minibikes, and smaller displacement engines. **The primary mechanical difference is that a 420 chain carries a higher tensile strength rating due to its larger pins and rollers.**
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