The rule of the thumb says that the exact tightness of a chain will only let you move for about half an inch. Now, if the chain is too loose, then you need to tighten it. If you cannot even move the chain, then it is too tight, and it needs to be loosened.
How much tension should a bike chain have?
The chain should be tight enough that it only allows you to move it up and down about half an inch. If there is no slack in the chain then it is too tight. And if there is too much slack then you need to tighten that chain.
How do I know if my bike chain is tight enough?
Check your chain out. 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 tight should chain be on fixed gear?
It should be tight as it can be without binding. If the chain is too loose, it can fall off, which is quite dangerous on a fixed gear. Set the rear axle so that the chain pulls taut at the tightest part of the cranks' rotation. One at a time, loosen up each of the stack bolts, and tighten it back just finger tight.
What happens if bike chain is tight?
With a chain being too tight, that causes tightness and stress on the rear suspension. This can be quite uncomfortable for the rider. The chain itself will also become worn out much more quickly. The stress between each link may become too much and, in extreme cases, may break while you're out for a ride.
26 related questions foundDo bicycle chains stretch?
Chain wear is commonly referred to as 'chain stretch', because the chain's pitch grows in length as it wears. This is the most important type of chain wear, and the growth comes from the bushings wearing with the chain pins. Overtime, the inner diameter of these bushings increase and the pins groove out.
What happens if bicycle chain too long?
A chain that's too long (loose) may cause dropped chains and/or inconsistent shifting — front and back shifting. A chain that's too short (tight) can cause even bigger problems. Hopefully the bike just won't shift into the largest cog or to the big ring …
How do you fix a chain tension on a bike?
To change the tension loosen one of the axle-nuts and move the wheel forward or backward slightly and snug it up again. Then, loosen the opposite axle-nut, adjust and tighten, making sure the wheel remains centered in the frame. Re-check tension. A chain tensioner can make the process easier.
Why is my bike chain slipping?
Most of the time, skipping or slipping bike chain can be caused by a very stretched chain or worn cogs teeth, after a long riding and hard use, the chain will get stretched, and start causing damage for both cassette and chainrings teeth, at a certain point the chain will lose its good mechanical contact causing the ...
When I stop pedaling the chain goes slack?
If your chain is getting slack on top when you stop pedalling or backpedal, then the problem is in your freehub (or freewheel, whichever you have), a dirty freehub will cause all the problems you've listed, even on a brand new bike.
Why does my bike chain keep falling off?
Most of the time, bike chain keeps falling off can be caused by a the chain itself or bad adjusted on the drivetrain system, after long riding mileage, the chain will get stretched causing damage to both chainrings and cassette teeth, therefore it loses its good mechanical contact causing the chain to jump from the ...
How many miles does a bicycle chain last?
Replacing your chain regularly can prolong the life of your drivetrain. Most mechanics agree that you should replace your chain about every 2,000 to 3,000 miles, depending on your riding style.
How many links should my chain have?
A new bicycle chain usually comes with 116 links. This is long enough for the biggest chainrings and for most distances of rear wheel from front chainrings. So for optimal length a new chain is usually shortened from the 116 links that come in the box.
How do I know if my chain is the right length?
Before removing the old chain, verify that it is the correct length. Shift the bike into the largest chainring and rear cog. The chain should be long enough to make this shift with two slight bends at each pulley of the rear derailleur. Next, shift to the smallest chainring and sprocket.
How do you know if your bike chain has stretched?
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.
Can chains get stretched out?
It's perfectly normal for a chainsaw chain to stretch after regular use. But, if you allow your chainsaw to become too loose, it can easily come off and pose a dangerous situation for you. A chainsaw chain stretches and loosens from tension and extreme friction.
Do chains stretch over time?
Although chains are frequently described as having stretched due to wear and use, the term “chain stretch” is slightly misleading. The phenomenon of chain stretch is more properly referred to as chain elongation, since it is not the case that the chain links themselves are actually getting longer.
Why does my bike chain slip when I pedal hard?
The most common reason for the chain slipping is that the cable is stretched, then the solution is to tighten the shift cable. If the problem is that the chain is too long they will need to shorten the bike chain. If there is any damage to the sprocket, derailleur, chain, or cable you will need to replace it.
Is it OK to use wd40 on bike chain?
WD-40 is a great bike chain lube water based lubricant and will not only lubricate the chain well, but will also keep it rust and corrosion free. It also minimizes the accumulation of dirt which reduces the wear and tear of the chain.
How often should you lubricate a bike chain?
Bicycle Tutor recommends cleaning and lubricating your bike's drive chain at least once every month to maintain optimal performance and protection. The chain and drivetrain are typically the dirtiest parts of your bike, and this dirt is bad news for bike longevity and performance.
How many years does a bicycle last?
You should expect at least 4-5 years, but it's just not that simple. Frames and forks may last a lifetime, but some components only withstand 6-12 months of daily use. It depends on quality, conditions, maintenance, and the individual rider.
How do I keep my chain from falling off?
Don't pull too hard at parts and make them bend or break, but just wiggle them a little bit to see if they rattle or move slightly. If there is something loose, tighten it down (not too tight) and see if you can run through your gears without the chain falling off.
Why does my bike chain come loose when I stop pedaling?
Check your jockey wheels as well. if they are not turning freely or the chain has come off one then it will make the chain go slack when you stop pedalling. The most likely cause though is the freehub or freewheel being sticky as said.
Can a bicycle chain be put on backwards?
If you are taking off an existing chain to clean it and put it back on, you must put it back in the same direction as it was before. Due to wear and tear, failure to replace the chain how it was before will result in the chain and gears slipping.
