How Long Bicycle Chain?

How long should a bicycle chain be?

Using a ruler, a new chain should measure exactly 12 inches across 12 links, from middle of pin to middle of pin. The number most commonly agreed on for a worn chain is one percent elongation between links.

How do I know my bike chain size?

Add the multiplied chainstay length, the divided number of teeth for the chainring and rear sprocket, and add 1 (or 2.5 cm). The result is the ideal chain length for your bike. 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.

Does length of bike chain matter?

Length Does Matter: Chain length is one of those important setup points that often gets overlooked both when building up a bike from scratch, or when replacing a worn chain. The best case scenario is that your bike will refuse to shift to the larger sized cogs or chain rings due to too much chain tension.

Can a bike chain be too long?

A chain that’s too long (loose) may cause dropped chains and/or inconsistent shifting — front and back shifting. BUT, things can go really bad … if it does shift and rips the derailleur off, damages the chain or bends gear teeth. Too long – can cause annoyance. Too short – can be very expensive.

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Do I need to shorten my bike chain?

Why Shorten a Bike Chain? All bikes come with a recommended bike chain length. It’s important to stick to this length if you want to ride comfortably and preserve the life of the rear derailleur. It’s the bike chain that does the work of getting the tires in rotation so that your bike can get in motion.

How can I tell if my bike chain is stretched?

Another ballpark method for checking chain wear is by measuring it with a ruler. Pick a rivet and line it up at the zero mark. Count 24 more rivets and your last rivet should be at the 12″ mark of your ruler. If it is off by more than 1/16″ your chain is stretched to the point of replacement.

What is the difference between bicycle chains?

Chains can vary in side plate shape, sizing, and height. Differences can cause variations in shifting performance between brands and models. Additionally, chains will vary in the quality of steel used. Better chains that are more durable and longer lasting tend to have harder rivets.

Does length of chain affect speed?

Registered. Sprocket and gear size affect performance (speed/torque) The length of the chain will only effect your wheel base

How do I set the size of a chain link?

Chain Link Sizes: How to Measure Chain Link Sizes

  1. Pitch is measured by finding the distance from the center of one pin to the center of the next pin in line.
  2. Determine your side plate height and thickness by measuring both inside and outside the roller chain to ensure that you’re seeing a good average size.
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How do I know if my chain is too loose?

75% of its original length. If you put the tool up against the chain and it doesn’t reach the 0.5 mark, then your chain has not elongated and is fine. If you find that it is 0.5, you need to replace the chain if you have 11 or more rear gears. If it is 0.75, you need to replace it if you have 10 or fewer rear gears.

What happens if bike chain is loose?

You may experience the following if the chain is too loose: * Creates unusual jarring noises when the chain runs over the sprockets. * Chances of getting the chain out of the sprocket is high. * Clanging motion along with noise whenever the throttle is opened.

What is a chain stay?

What is the chainstay? The chainstay or “stays” = The pair of frame tubes that joins the bottom bracket shell to the rear axle holders (the slots the back wheel goes in). This means that the chain stays connect the bottom bracket (BB) to the center of the back wheel.

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