How do I choose a mountain bike chain?

How do I know what type of bike chain to buy?

When selecting a chain, the first consideration is the number of rear sprockets. The rear cog sets have been made with 5, 6, 7, 8, 9, 10, 11, or 12 sprockets. As the number of cogs on the rear hub increases, the spacing between cogs tends to be reduced.

How do I know my chain size?

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.

How do I know if my bike chain is too short?

You should also see two slight bends at each jockey wheel of the rear derailleur. If the chain is too short, this shift is difficult to make and the derailleur cage is stretched out and almost parallel to the chainstay. If the chain is really short, then you might not even be able to shift into the largest cog.

Are 6 7 8 speed chains the same?

5, 6, 7 and 8 speed chains

Shimano, SRAM and Campagnolo all use the same chain with 8 speeds. Chain for 7 speeds is a bit wider – 7.3 mm, while a 6 speed one is substantially wider – 7.8 mm. … Going further narrower, like a 10, or 11 speed chain on an 8 speed cassette can and often does work.

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What size is a 420 chain?

What Size Chain Do I Need?

Standard Roller Chain Specifications & Strengths
Chain Size Chain Pitch Roller Diameter
#41 1/2″ 5/16″
#420 1/2″ 5/16″
#40 1/2″ 5/16″

What are the different sizes of roller chain?

Chain standards

Size Pitch Maximum Roller Diameter
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)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm)