What causes a motorcycle chain to break?

When a link is rusted enough, it becomes weak and can potentially break. The other big reason a motorcycle chain breaks is because of the wrong tension. If the chain is too loose, it can come out of alignment with the sprockets which will likely cause a jam.

How often does a motorcycle chain break?

But chains wear out over time and need replacing. So, how often should a motorcycle chain be replaced? In general, a properly maintained motorcycle can last 20,000 to 30,000 miles, sometimes more. But, some last as little as 5,000 to 10,000 miles.

What happens if you ride a motorcycle with a loose chain?

If the chain is too slack, it can skip over the tooth in the sprockets, This skipping over of teeth leads to uneven transmission of power from the engine to the wheel. As a result, the speed of the motorcycle will unevenly oscillate without any intervention from the rider.

How long should motorcycle chain last?

On average, you can expect to replace your chain and sprocket between 20,000 to 30,000 kilometers, less if you ride fast and hard. However, if you spot any damage to your chain or sprocket, it's better to just go and replace the prematurely-worn part right away.

How do I know if my motorcycle chain is bad?

Another, much easier way to check for a worn chain is to try to pull the chain away from the rear of the sprocket on the rear wheel. If the chain is worn, you'll reveal about half a tooth of the sprocket. A new chain will wrap around the sprocket snugly and won't pull away.

30 related questions found

How often should you lube your motorbike chain?

A motorcycle chain should be lubricated every 300-600 miles to ensure peak performance and a long life. Lubricate the chain after riding, not before. This allows time for the solvents in the spray to evaporate before the bike is used again, and lets the lubricant penetrate the link properly.

Why is my motorcycle chain tight and loose?

A motorcycle chain that keeps getting loose is usually caused by the rear axle or chain tensioning bolts not being tight enough. It can also be cause by a new chain not being worn in enough, worn down sprocket teeth, having too tight of a tension, or having the wrong size of chain installed.

How much play should a motorcycle chain have?

On average, however, most street motorcycles will need a chain tension of about 20 – 30 mm, or about a half inch to an inch in slack. This means that the chain should be able to move about a half inch to an inch up and about a half inch to an inch down.

Will a loose motorcycle chain cause loss of power?

Too tight, and the tension will restrict your power and force, effectively hindering your motion (and safety). Too loose, though, and you risk a chain jumping off a sprocket; a slapping chain has the potential to damage moto-parts (and rider-parts).

Can a motorcycle start without a chain?

Starting is just fine without a chain.

What's the danger of riding with a worn drive chain?

Allowing the drive chain to run dry will greatly increase the rate of wear, so it's important to keep it lubricated. If the chain becomes worn or slack, it can jump off the sprocket and lock the rear wheel.

How do you break a motorcycle chain without tool?

I use a 4" grinder to grind the pin on the link you want to break the chain at, then use a punch that is slightly smaller in diameter and drive it out with a hammer. You just need to grind the pin until it's flush against the outer link plate. Then simply punch it through.

Can you put a new chain on old sprockets?

When a sprocket is really, really badly worn, putting a new chain on it can cause problems. But in most cases, even if the sprocket is "too" worn, a new chain will improve things at least a little. The chain may wear a hair more quickly, but not enough to notice.

How long does chain sprocket last?

Your sprockets and chain are typically changed as a pair with 520 chains lasting up to 25,000 km and 530 chains 40,000 km if you keep clean and lubricated every 500 km.

When should I tighten my motorcycle chain?

Small adjustments of a quarter turn (or less if your chain is only slightly loose) are the safest bet. Measure the slack after every change. When the chain is within factory specifications (usually around 1.2–1.5 inches), tighten the axle nut to keep it from slipping.

How tight should a drive chain be?

When the chain is properly adjusted the chain will be 1/2" (for T-Rail) or 1/4 " (for Square Rail) above the base of the rail at its midpoint. If the chain is either too loose or too tight, sprocket noise may result.

What causes uneven chain tension?

Uneven chain tension is almost always due to kinking links, new chain will fix.

How much will a new motorcycle chain stretch?

A chain will naturally seem to stretch as you ride, but it should never stretch to more than 2 percent. If you're experiencing significant stretch with a new chain, contact the manufacturer.

How do you fix a loose motorcycle chain?

Turning the adjusters clockwise will tighten the chain, and counterclockwise will loosen it. By turning the adjusters, you're moving the whole wheel up and down the swingarm, so it's important to move them gradually and equally on both sides of the bike.

Can you use wd40 for motorcycle chain?

It is highly recommended that you do not use Multi-Purpose WD 40 on the chain of your motorcycle. The WD stands for Water Displacement, and it is designed to disperse water away from metal parts to prevent rust.

Can engine oil be used as chain lube?

Can I use motor oil as a chain lube? You can use motor oil. However, it's not recommended as this oil is too thick and won't penetrate the inner components.

How do I know if my bike chain needs lube?

Your chain will tell you when it needs to be lubed. If it's dry and squeaky when you're riding, it's time to lubricate. This is likely going to be after riding in heavy rain or if you've never ever oiled your chain.

How do I know if I need a new bike chain?

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.

You Might Also Like