Bicycle Chain Length Measurement

Bicycle driving chain pitch.

Bicycle chain length measurement.

R number of teeth on largest rear cog. A bike has a 42 32 22 front chainring set up. Chain pitch is the distance at which the pins are placed. Twenty half links in a new chain measure 10 inches.

The result is the ideal chain length for your bike. Measure the total length of the new chain from the centre of one end to the centre of the other end. Each chain has three important dimensions. Use chart above to find decimal measurement.

After all it makes sense to think that a longer chain stay will also need a longer chain. This video will take you step by step through sizing a bike chain including determining whe. And add 1 or 2 5 cm. A bicycle chain is a roller chain that transfers power from the pedals to the drive wheel of a bicycle.

It is measured by measuring the distance between 3 links then dividing it by two. The chain length must match the distance between crank and rear hub and the sizes of the front chain ring and rear sprocket. Size to old chain count links if your old chain was sized correctly it can be used to determine the length of your new chain. L chain length in inches.

Measure the length of the chainstay and multiply it by 2. F number of teeth on largest front chainring. If it s an option you can mark on the wall use tape where the chain reaches. For example you d add 32 5 13 7 and 1 to get 53 5.

The size of these elements is the most important factor for calculating a chain length. Replacement chains for bicycles are always longer than you need. The length of the chain should be 53 5 inches or 135 89 cm. Round the final result to closest whole inch figure.

Pitch inner diameter and outer diameter. To check if it was the correct size shift the bike to the smallest sprockets and check the chain for any slack. Methods to determine chain length method 1. There are a few ways to get the correct chain length on your road bike as dan lloyd will show you in this video.