Quick Answer: How do I know what bike chain I need?

The method of chain sizing depends upon the range of gearing in the system. For bikes with rear sprockets 36 teeth and smaller, the common system is to measure using the largest rear sprocket and largest front ring as a reference. Two rivets are added to this (one-inch) for the place to cut the chain.

How do I know my chain size?

To determine the pitch (chain size), you’ll need to measure the distance between any three consecutive rivets, then divide the result by 2. The rivets are the small, round pegs/studs that hold the chain segments together. Measure from the first to the third, then divide that number in half to get your chain pitch.

What size chains do bikes use?

The chain in use on modern bicycles has a 1⁄2 inch (12.7 mm) pitch, which is the distance from one pin center to another, ANSI standard #40, where the 4 in “#40” indicates the pitch of the chain in eighths of an inch; and is standard 606 (metric) #8, where the 8 indicates the pitch in sixteenths of an inch.

How do you match a chain and sprocket?

To measure the chain size, if you have just the sprocket, use calipers to measure between the teeth. Measure from center to center of where the chain roller would set between the teeth that will give you the pitch. Once you know the pitch you can determine what chain size you would need.

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How do you replace a bike chain?

How to replace a bike chain in eight steps

  1. Remove the old chain. First, jettison the old chain. …
  2. Clean the cassette. Now is a good time to clean and inspect your chainrings and cassette. …
  3. Thread the new chain. …
  4. Work out the correct length. …
  5. Cut to size. …
  6. Insert the pin. …
  7. Push the pin home. …
  8. All done.

What do the numbers on a bike chain mean?

Bicycle Chains are generally categorized into two types: 1/2 × 1/8 and 1/2 × 3/32. The first number (1/2) is the chain pitch; the latter numbers (1/8 and 3/32, respectively) indicate the inner width in inches. … Number 1/2 × 3/32 chain is used with a derailleur.

What is the difference between 1 8 and 3/32 chain?

A 1/8″ chain is 3.18 mm, and a 3/32″ chain is 2.30 mm. … The 3/32″ chain will be slightly more flexible than a 1/8″ chain, which means it will be a bit happier if your chainline is not very straight. Using a track frame and track style crankset you should not have this problem.

What does 520 mean on a chain?

Usually, bushings separate the rollers from the pins, but there are bushing-less designs. (3) The size of a chain is designated by a three-digit number (520, for example). The distance from the center of one pin to the center of the next is called pitch. Pitch is represented by the first digit, which is 4, 5 or 6.

What are the different chain sizes?

Chain standards

Size Pitch Maximum Roller Diameter
40 0.500 in (12.70 mm) 0.312 in (7.92 mm)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm)
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What size is a 35 chain?

#35 Chain Dimensions

Size Pitch (P) Weight (Per Ft)
35-2 0.375″ 0.46 LBS
35-3 0.375″ 0.70 LBS
35-4 0.375″ 0.95 LBS

Is 41 chain the same as 420 chain?

#420 will have more strength than the #41 chain because the side plates will be taller. #40 will be the beefiest chain in this class. This will help with thicker sprockets since there is more room between the side plates. #41 will look just like the #420 chain, but will stand shorter.