Why does a mountain bike drop a chain, why does a mountain bike drop a chain?

First of all, it is recommended that you develop a good habit, as long as you want to stop and go uphill in front, or even slow down, you will go into the next gear, there is no harm, so that you will ride very easily.

If you still press hard when changing gears when going uphill, the chain is a must for the old kit... Look at your car and know that it definitely does not support shifting on the spot, so you should pay attention to the fact that you can't change gears when starting uphill, in this case the chain.

The tension is very large, and it is often pulled off when it can't change gears, and it is easy to drop the chain.

When shifting gears, it is necessary to shift gears while stepping on them, so that the chain can be hung on the corresponding gear, but not with great force, if the chain has not been hung on the gear you use force, the chain will slide off the gear, resulting in a chain drop...

However, there are still mountain kits that support in-situ shifting, that is, shifting gears can be stepped on vigorously, but this is generally a high-end kit, which is very expensive...

If you want to change when you go uphill, you have to take your time, step on it slowly, wait for the chain to hang up and then push hard, if the speed is too slow, come down and push it...

Often this will cause serious wear and tear, which is very bad for the car, and it will be easier to drop the chain in the future, a vicious circle, so pay attention and develop good habits

And you said that the first gear is changed to the second gear and the third gear or something, and the front and rear gears of the low-end kit are recommended.

Follow up, don't be too far behind, otherwise there will be wear and tear between the chain and the gear, which will hurt the car, and the shift is easy to change... That's how we've all been, experience...

Happy riding

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Mountain bikes often drop chains, how to adjust the high and low gear positioning screws to ensure that mountain bikes no longer drop chains.

Two reasons:1Lack of maintenance, oiling after cleaning Problem solving 2There is an old wound somewhere in the chain, carefully check the chain interface, find out and remove this buckle, it's okay, the general chain needs to remove one or two buckles after one year

You're having a bit of a problem with shifting.

Shift gears early before going uphill.

The 123 gear you said is a front derailleur?

Climbing generally gives priority to using the rear derailleur to change speeds.

It is recommended that you shift gears before going uphill.

Well, I haven't met it, so why don't you change the transmission?

Drop the chain in the usual riding, is the chain failure occurs the most, often drop the chain for many reasons, the bicycle chain in the adjustment, do not be too tight, too close will increase the friction between the chain and the transmission, this is also one of the reasons for the chain drop, the chain can not be too loose, too loose is also easy to drop the chain when riding.

The method of testing whether the chain is too loose and too tight is very simple, as long as you turn the crank by hand, and gently push the chain with your hand at the same time, if it feels very loose, you should adjust it a little tighter, if it is too close, you need to adjust the limit screw to loosen a little, in fact, you can also identify whether the chain is loose or tight according to the tension of the chain.

The situation of broken chain is often when riding vigorously, when exerting too much force or when changing speed across stages, the chain is suddenly broken, and the broken chain often occurs when off-road, when pulling forward or pulling back to change gears, resulting in an increase in the tension of the chain and causing chain breakage.

Causes and solutions:

If the bicycle is used for a long time, the flywheel will be seriously worn, so the chain will slip, and it has nothing to do with the chain. The problem is on the flywheel, the teeth of the flywheel are sharpened and the chain will jump, the solution is to go to a professional maintenance point to find a professional to replace the flywheel.

There are many cases of chain loss, generally it is possible that the limit screw of the transmission is not adjusted to the correct position, or the transmission is not used correctly, and many extreme gears will also fall off the chain under special circumstances.

Such a car often drops the chain because the chain does not match the gears of the front and rear discs. The solution is to change the front and back plates together, although the cost will increase, but in order to ensure safety, such an expenditure is still worth it.

The fundamental reason why the transmission chain of the bicycle has been falling off may be that the transmission chain is loose or too long, the chain will fall off when riding a bicycle, the turntable is unstable, the inclination angle of the crankset and the flywheel is too large, and the chain will fall, or the angle of the flywheel and the rear gear is offset, that is, the transmission chain is not very straight.

The solutions to the bicycle always dropping the chain are:

1. Loosen the rear wheels and adjust the spacing moderately.

2. It is very likely that the chain is loose and elongated due to cycling for a long time, and it is enough to remove the chain and pick it, or you can go directly to the repair shop to make it shorter.

3. After riding a bicycle for a long time, the wheel screw is loose, the screw is unscrewed and the wheel is moved back moderately, according to the length of the chain, don't make it too tight or don't push it hard, and then the screw is tightened, and it is best to maintain it regularly.

It's that the chain is too loose, just turn the rear wheel back.

Drop the chain in the usual riding, is the chain failure occurs the most, often drop the chain for many reasons, the bicycle chain in the adjustment, not too tight, too close will increase the friction between the chain and the transmission, this is also one of the causes of the chain drop, the chain can not be too loose, too loose is also easy to drop the chain when riding.

The method of testing whether the chain is too loose and too tight is very simple, as long as you turn the crank by hand, and gently push the chain with your hand at the same time, if it feels very loose, you should adjust it a little tighter, if it is too close, you need to adjust the limit screw to loosen a little, in fact, you can also identify whether the chain is loose or tight according to the tension of the chain.

The situation of broken chain is often when riding vigorously, when exerting excessive force or when changing speed across stages, suddenly the chain is broken and the chain is broken, and the broken chain often occurs when off-road, when pulling forward or pulling back to change gears, resulting in an increase in the tension of the chain and causing a broken chain.

No. 1 screw we can find that the attachment has the word h, which represents high, that is, we often say high-speed gear limit screw, the function of this screw is to adjust the distance to shrink in the direction of the minimum tooth, this screw is too tight will cause the chain 7 speed, 8 speed, 9 speed system, gear display to 7, 8, 9, the chain can not be in place, and between the minimum flyer and the second small flyer jump, if the screw is adjusted counterclockwise to too loose, it may produce down to the place where the smallest tooth thinks (off the chain), So this screw is specifically designed to control the chain's final position on the left and right of the smallest teeth.

The No. 2 screw has the word L, the screw is the low, which is what we call the low-speed limit screw, the screw controls the position of the maximum flight on the chain, when adjusted in place, the chain can easily enter the large flyer, and will not be disconnected from the chain inward in the space between the spokes, and will not let the rear dupliceur directly contact the spokes, the screw is too loose will cause the above two situations, and too tight will produce the inability to dial the maximum flyer, or control the transmission of the flywheel in 1st gear, The chain beats between the largest and second largest flyers.

The No. 3 screw is what we often call the line tension adjustment screw, the tension adjustment is good by rotating the part counterclockwise and clockwise, and the result of the adjustment is to let the chain accurately stay on the corresponding gear when controlling the finger dial action of the rear transmission, and the direction of adjustment is to increase the line tension counterclockwise and reduce the line tension clockwise.

In addition, there are also fine adjustment screws on the split finger dial on the horizontal side that are the same as those for screw 3, and the front and rear dials can be fine-tuned.

If the chain is fine, adjust the transmission.

Ensure that the chain is engaged with the rear gear. Snap the chain onto a few buckles under the front gear, lift the rear wheel, hold the brace and turn it clockwise, and wait for the chain to be installed and you can ride.

Chain loss is generally common in single-speed bicycles, and chain drops on transmission bikes are relatively rare, and chain drops on shift bikes are generally because the speed is not adjusted well, and the chain may be shaken out through bumpy roads when the speed is relatively fast. As for the chain loss caused by the crash, I won't talk about it.

Chain: The chain, also known as the car chain and roller chain, is installed on the connecting wheel and the flywheel. Its function is to transfer the pedaling force from the crank and sprocket to the flywheel and rear wheel, driving the bicycle forward. Sprockets: made of high-strength steel to ensure that they achieve the required pulling force.

The bicycle always drops the chain, what is the reason for this, after reading the chain manufacturing process, I repair it myself.

1) Loosen the rear wheel and adjust the distance appropriately, and you're good to go.

2) It may be that you have been riding for a long time and the chain of the bicycle is loose and long, just remove the chain and pick it up, or go directly to the garage to make it shorter.

3) After riding for a long time, the screws are loose, the screws are unscrewed and the reels are moved back appropriately, according to the length of the chain, don't make it too tight or don't push hard, and then tighten the screws, it is best to check it regularly.

4) Rub some lube on the car chain.

Possibility 1: The chain of the bicycle is loose (ask the person who repairs the bicycle to knock it for you a few times) Possibility 2: The chain of the bicycle is very worn (this will have to be replaced) My bicycle used to often lose the chain, but later it turned out that the chain was worn, and everything was OK after changing the chain.

If I'm not mistaken, it was the bike's chain that came loose and it would be nice to have the bike repairer knock it for you! Because I have a bike just like yours!

Drop the chain in the usual riding, is the chain failure occurs the most, often drop the chain for many reasons, the bicycle chain in the adjustment, not too tight, too close to the ear section will increase the friction between the chain and the transmission, this is also one of the reasons for the chain drop, the chain can not be too loose, too loose is also easy to drop the chain when riding.

Basic Categories:According to different uses and functions, the chain can be divided into four types: transmission chain, conveyor chain, traction chain and special special chain.

1. Transmission chain: a chain mainly used to transmit power.

2. Conveyor chain: a chain mainly used to transport materials.

3. Traction chain: mainly used for pulling and lifting chains.

4. Special special chain: mainly used for the chain with special functions and structures on the special mechanical device of Ransun.