It is marked in the picture 2.
Bicycle chain length guide.
How to calculate chain length video tutorial animation of shimano gearing system this page was last edited on 2 september 2020 at 13 03.
It really isn t too difficult to get the chain length right.
For example some derailleur bike chain could only be 51 52 53 inches etc.
The correct chain length chain rivet.
If you bike a lot you should also give serious consideration to some high quality chain lube as well.
Chains cannot be cut to 52 1 4 53 1 8 or even 52 1 2.
This goes for all the bicycle chains regardless of the speed number.
There are a few ways to get the correct chain length on your road bike as dan lloyd will show you in this video.
Inner chain width is the spacing between a pair of inner plates.
Take your old chain and lay it out next to the new one.
A number of different chain widths are available to suit specific bike types such as bmx or to fit different road and mtb drivetrains e g.
The complete guide to chain general not specific to bicycles.
All you need are a chain rivet or a chain lock and you will need to know the amount of chain links needed for a correct chain length.
It is possible to determine chain length from industrial drive train equations and then cut the chain before installing it on the bike.
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.
You can use either of these two methods.
The type of chain you need will depend on the type of bike you are riding.
To check if it was the correct size shift the bike to the smallest sprockets and check the chain for any slack.
For this post it suffices to say that bicycle chain pitch is exactly 1 2 inch 12 7 mm.
The reality is that speed is a factor in most injuries so it pays to outfit your bike with this essential safety feature.
A chain guide mountain bike can eliminate that possibility.