FAQ: How Long Bicycle Chain Last?

How often should a bike chain be replaced?

To avoid this accelerated wear of your cassette and chainrings, a general rule of thumb is to replace your bike’s chain every 2,000 miles. 4

How long do bike chains last?

Expect between 1,500 and 3,000 miles from a 10-speed chain. It helps to establish what counts as ‘worn out’. A chain is worn enough to affect transmission efficiency when it lengthens by 0.75% but has some life left if extended mileage is the aim, in which case it should ideally be replaced when it lengthens by 1%.

Do bike chains loosen over time?

Do bicycle chains really stretch? The short answer is no, however they do wear in such a way as to cause their maximum length to increase. Mechanics usually refer to this as chain “stretch.” It is the sign of a worn out chain that should be replaced.

Is WD40 bad for bike chains?

WD40 is primarily a solvent, which means that it dissolves contaminates so parts get nice and clean. As a solvent, WD-40 will strip away any existing lubricant, leaving your chain, and drivetrain dryer than before application. This means that using WD-40 as a chain lubricant is worse than using no lube at all.

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How much does it cost to replace a chain on a bike?

Most bike shops will charge about $30 – $50 dollars depending on the bike shop, whether it’s a popular brand or a “mom & pop” shop. You may also want to take into consideration that the chain itself may cost $30 – $50 dollars but then the labor cost to replace this might run you an additional $10 dollars.

How often should I lubricate my mountain bike chain?

The recommendation to lube your mountain bike chain “ at least every 100 miles ” is a generic suggestion found in many bicycle owner’s manuals. If you use your bike for leisurely rides in dry, clean conditions, such as a paved bike path, you could rely on this arbitrary marker.

What causes bike chain to break?

Mountain bike chains break because of wear and tear, poor maintenance, and gear shifting under a heavy load. Others reasons are because of worn cogs, the chain gets hit, and chain suck. Lastly the teeth of the chainring is bent, not using proper joining pins, and not properly installing the bike chain.

Should I replace a rusty bike chain?

If your bike chain is severely rusted, replacing it entirely may be best for the health of your bike. Imperfections in severely deteriorated chains can damage other parts of your drivetrain. After the chain is clean, you’ll only need to reattach and lubricate it before you’re ready to ride.

How do I know which 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.

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

Do a simple check on your bike by shifting the chain to the big chainring and the biggest cassette cog; then, push on the end of the derailleur cage (pushing forward) to see how much it will move forward. If it moves just a little, then you’re good. If it moves a lot, then you’ve got too much chain.

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