420 Standard Motorcycle Chain
A 420 motorcycle chain is a type of roller chain that is commonly used on smaller motorcycles, dirt bikes, ATVs, and other off-road vehicles. It is a relatively lightweight and inexpensive chain, but it is also relatively durable and can handle a moderate amount of power. 420 motorcycle chains are typically made of alloy steel and have a pitch of 1/2 inch. They are available in a variety of lengths to fit different applications.
One of the main benefits of a 420 motorcycle chain is that it is relatively easy to maintain. It does not require as much lubrication as other types of chains, and it is also relatively easy to replace. However, 420 motorcycle chains are not as durable as some other types of chains, and they may not be suitable for high-performance motorcycles or for applications where the chain will be subjected to excessive wear and tear.

| Chain No. | Pitch | Bush Type | Width | Pin Dia | Pin Length | Roller Dia | Plate Thickness Inner | Plate Thickness Outer | Tensile Strength | Weight |
| mm | mm | mm | mm | mm | mm | mm | KN | kg/m | ||
| 420 | 12.700 | Curled | 6.35 | 3.96 | 14.70 | 7.77 | 1.50 | 1.50 | 15.6 | 0.57 |
420 motorcycle chains are a non-standard series roller chain that is commonly used on lighter motorcycles, such as dirt bikes and scooters. They are also sometimes used on ATVs and other off-road vehicles.
Here are some of the advantages of 420 motorcycle chains:
However, there are also some disadvantages to 420 motorcycle chains:
Overall, 420 motorcycle chains are a good option for lighter motorcycles and budget-minded riders. They are lightweight, durable, and widely available. However, they are not as strong as other types of chains and may have a shorter lifespan.

A 420 motorcycle chain should be lubricated every 400-600 miles, or more often if you ride in wet or dusty conditions. You should also clean the chain before lubricating it.
Here are some tips for lubricating your motorcycle chain:
Here are some additional factors to consider when lubricating your motorcycle chain:

Motorcycle chain sprockets are the toothed wheels that engage with the motorcycle chain to transmit power from the engine to the rear wheel. The chain is looped around the sprockets, and the teeth mesh together to create a positive drive.
420 motorcycle chain is a type of roller chain that is commonly used on dirt bikes, scooters, and other small motorcycles. It is a relatively lightweight and narrow chain, making it ideal for applications where performance and weight are important.
When choosing motorcycle chain sprockets, it is important to match the size and type of sprocket to the size and type of chain. You also need to consider the desired gear ratio. The gear ratio is the ratio of the number of teeth on the front sprocket to the number of teeth on the rear sprocket. A higher gear ratio will give the motorcycle more top speed, while a lower gear ratio will give the motorcycle more acceleration and torque.
Here are some tips for choosing and maintaining motorcycle chain sprockets and 420 motorcycle chains:


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