#25 chain is the most common type of chain used on electric scooters, electric bicycles, electric pocket bikes and small electric go karts. #25 chain has a 1/4" spacing between each link and is approximately 1/4" wide.

#35 Chain

#35 chain is the most common type of chain used on mopeds, mini bikes and full size go karts. #35 chain has a 3/8" spacing between each link and is approximately 3/8" wide.

8mm Chain
8mm chain is the most common type of chain used on pocket bikes. 8mm chain has an 8mm (5/16") spacing between each link and is approximately 10mm (3/8") wide.

Bicycle Chain
Bicycle chain is used on all standard pedal bicycles and electric bicycles. Bicycle chain has a 1/2" spacing between each link and is approximately 3/8" wide. The most common sizes of bicycle chain are 1/2"x1/8" and 1/2"x3/16" (the second measurement refers to interior width of chain).