For example, line up an outer plate with an outer plate or an inner plate with an inner plate.
Once you’ve cut or sized the new chain, it’s ready to put on your bike.
If you’re using a connection rivet chain, move the end with the outer plate towards the front chainring. Keep threading the chain until the end is at the 5:00 position. [6] X Research source If you’re using a chain with a master link, put half of the master link in the plate.
You won’t need to pull the chain along the rear derailleur for this method.
The 2 rivets will equal about 1 inch (2. 5 cm), which should be enough of an adjustment for a rear derailleur. [9] X Research source
The full equation for calculating the chain length is as follows: (chainstayx2) + (chainring/4) + (rear sprocket/4) = correct chain length
For example, if your chainstay is 16 1/4 inches or 16. 25 inches, multiply that by 2 to get 32 1/2 (32. 5) inches. You’ll need to write down the measurement in inches so you can use the equation. Once you’ve gotten the result, you can convert it to metric, if desired.
Depending on the sprocket or chainring, you may have an odd number to divide by 4. The calculation will still work out if you have a decimal.
You may not get a whole number if the sprocket has an odd number of teeth.
For example, you’d add 32. 5, 13, 7 and 1 to get 53. 5. The length of the chain should be 53. 5 inches or 135. 89 cm.
