16 inch
chain: 525 , sprockets: 16/43
I would go with 16.
Ben Raleigh was born on June 16, 1913, in New York, USA.
If you have a stock Husqvarna 345 with .325 pitch chain you would need a 3/16" file. http://store.chainsawr.com/
There's no set length for all 16" bikes. It depends on the proportions of the frame and the gear ratio it's set up with.
To size a chain for a bicycle, first determine the number of speeds on the bike. Then, count the number of links on the old chain and match it with the new chain. If replacing the chain for the first time, consult the bike's manual or a professional for the correct chain size.
The chain size is 530. it was an O-ring from the factory.
To identify the size of a chain, you can measure the pitch, which is the distance between the centers of two consecutive links. This measurement will help determine the size of the chain.
The recommended size of the chain to use with a small sprocket is typically a smaller chain size to ensure proper fit and function.
chain size is 630 pitch, o-ring style chain recommended
the size of chain on the 1981 kz650 is a 530 or 630 chain. that is a pretty good chain in my opinion because it is very strong and it is pretty thick.