1.2–1.6 inches (30–40 mm) is typical for streetbikes, while dirt bikes may need 1.4–2.0 inches (35–50 mm) of slack.
How tight should your bike chain be?
It should be tight enough that it only allows you to move it up and down about one inch. If it is sagging or much looser than that, you need to tighten that chain up. Chains often loosen when a bike does not have a derailleur.
How much slack should dirt bike chain have?
Correct chain slack should be around 1 – 1.25 inches at the end of the chain guide. An accurate way to see if it is correct is to put 3 fingers between the chain and the swingarm, right at the end of the chain guide. The chain and swingarm should be pressing on your fingers.
Do new dirt bike chains stretch?
A new motorcycle chain will appear to stretch during the first few rides after installation. However, a chain should not stretch too much immediately and might be defective if it continues to stretch or needs to be constantly adjusted.
What happens if your dirt bike chain is too loose?
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).
Is my chain to tight?
Well, there are a few tell-tale signs that your chain tension isn’t set correctly, such as: A ‘wurring’ sound as you accelerate. Knocking between gear changes. The chain looking under strain when you sit on the bike.
Can a bike chain stretch?
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. Illustration of extreme wear on a chain pin.
Why is my bike chain skipping?
Most of the time, a skipping chain is caused by cable stretch. In the first half dozen rides on a new bike your shift cables stretch the most. They can also stretch over time as you ride. … Shift down into the smallest ring in the rear cassette again, and press your shifter again to see if the bike shifts properly.
Why does my motorcycle chain have a tight spot?
The most common cause of chain tight spots is that your sprockets are not as concentric to the wheel or gearbox output shaft as they should be, IE running “out of true”. This can be due to wear, poor quality sprockets or chain, or poor fitting.