I can t shift the rear wheel of my bike accurately, how do I adjust it?

the handlebar on the handlebar is controlled before the change , the other is controlled after the change , the front change is generally 3 gears , and the rear change has 5 6 7 8 9 10 gearsWhen the front gear is shifted to the maximum, the front gear chain is maxed out, the rear gear is shifted to the smallest gear, and the rear flywheel chain is maxed out: At this time:

The most strenuous but the fastest ride for the fairsWhen the front gear is shifted to the lowest gear, the front gear chain is on the smallest piece, when the rear gear is shifted to the maximum gear, and the rear flywheel chain is on the largest piece: At this time:

The least effort-saving, but the slowest ride, suitable for uphill climbsIsn't there two sides to the transmission? You fix one side first, and during the ride, you switch gears on the other side of the bike one by one.

In this way, you know that the gear is less laborious to ride, (remember, the more laborious gear, the faster you ride) You first know the gear on this side, and then you know the gear on the other side according to this method... Coupled with the fact that you ride more (also called a test ride), you can roughly master the gear shift in a day or two.

It seems that this can only be obtained by repairing the car.

Just go straight to the car repairer and get it done.

Summary. Dear, hello, I'm glad to answer for you, the rear wheel transmission of the bicycle is not in the right gear is a screw problem. Loosen the screws of the shift adjuster on the rear wheel, the key is that there is a problem with the screw on the top to cause the gear to be out of order.

If you can't handle it, you can go to the place that sells bicycles and ask someone to transfer it for you!

Dear, hello, I'm glad to answer for you, the rear wheel of the bicycle transmission is not in the right gear is a screw problem and ruined. Loosen the screws of the shift adjuster on the rear wheel, and the key is that there is a problem with the screws on the top to cause the disorder. If you can't handle it, you can go to the place that sells bicycles and ask someone to transfer it for you!

The variable speed exciter is a mechanism used to change the speed and torque from the engine, which can fix or change the output shaft to let the sock and the input shaft transmission ratio, also known as the gearbox. The transmission is composed of a transmission mechanism and a control mechanism, and there are some cars and power take-off mechanisms.

1) The biggest feature of a variable speed bike is that it can adjust the front and rear gears to achieve different speeds and different powers. The rear wheels mainly control the speed, and the smaller the gears used, the faster the speed, and there are several gears representing several gears.

3) The front wheel mainly controls the force, the larger the gear used, the greater the force used when pedaling the bike, and there are several gears representing several gears.

5) The correct posture of riding a variable speed bicycle generally needs to grasp 2 points:

1 The height of the saddle, when the heel steps on the pedal to the bottom, the whole leg is in the straight state.

2. Adjust the angle of the saddle and the angle of the handlebars so that the back is arched and not straight when riding.

6) The principle of speed regulation:

The smaller the rear wheel used, the faster the speed, and the larger the front wheel, the more laborious, according to their own physical strength and road conditions. For example, Qingtong can use small rear wheels and large front wheels when it is on flat ground, and small front wheels and large rear wheels can be used when the strength is low when going uphill (very labor-saving, but slow).

The bull's head above is not in the horse's mouth.

1. First adjust the rear derailleur. Start by turning the knob to the gear with the loosest shifting cable. The digital display is shifted to the digit position, such as 6 to 6 and 7 to 7. Then turn the footpeg to allow the rear derailleur to reduce the chain to the smallest chainring.

2. Tighten and lock the cable of the rear transmission. Hold the derailleur where the smallest chainring does not fall off the small chainring. Then find the lower stop screw on the derailleur and adjust the screw so that the screw is just pushed against the bottom stop iron of the derailleur.

In this way, the chain will not fall off the chainring no matter how much it changes. (Note: The lower stop screw has an English letter L, and the top stop screw has an H letter).

3. Then twist the shift knob while turning the foot pedal to let the rear derailleur turn the chain to the largest chainring, and stop at a position where it will not fall off the chainring. Adjust the other top stop screw (the one with h). Let it just top the top stop iron of the derailleur.

In this way, the chain will not fall off the chainring no matter how much it changes.

4. After adjusting the rear derailleur, start to adjust the front derailleur. The first step is to position the front derailleur's working height on the seat tube, which is a very critical step. Whether the adjustment is good or not will affect the subsequent debugging.

Turn the knob and the foot pedal at the same time to let the front derailleur turn the chain to the largest chainring, after the toothring plane is parallel to the derailleur plane, the gap between the tip of the chainring and the derailleur is 3 mm, not too big, not too small. This position determines whether the subsequent debugging will be smooth or not.

5. The second step is to adjust the lower stop position. Release the knob to change the front derailleur to the smallest chainring, and adjust the rear derailleur to change the chain to the middle chainring, this is to prevent the front derailleur from rubbing against the chain due to the rear derailleur change. Then adjust the lower stop screw of the front derailleur (the one with the letter L) so that the chain of the front derailleur stays in the middle position of the front derailleur.

In this way, the lower stop position is adjusted.

6. The third step is to tighten the wiring and lock it, there is nothing to say about this step. It is a pity that a good car that has been installed with a lot of money has not been able to give full play to the performance of the car. So how should the variable speed be used?

7. The fourth step is to adjust the upper stop position. Adjust the front derailleur to the largest chainring, adjust the top stop screw (the one with the H letter) so that the chain is in the middle of the front derailleur. When adjusting, it is also necessary to ensure that the rear transmission is in the middle position of the chainring.

8. After adjusting the front derailleur, you have to change the front derailleur to the smallest crankset and the largest position respectively, and then try whether the upper and lower stop positions of the rear derailleur transmission are appropriate, if not, you need to adjust it slightly.

I don't understand what it means, is the gear displayed on the handle different from the actual gear or something else?

Causes and solutions for mountain bike shifts that don't work properly:

1. The lack of lubricating oil between the chain, crankset and flywheel leads to the increase of the resistance of the chain to switch between the crankset and the flywheel, resulting in inflexible gear change. Solution: lubricate the chain every 100 kilometers (the lubricating oil on the chain will touch the crankset and flywheel during operation to lubricate the crankset and flywheel at the same time).

2. Too much greasy on the chain and transmission, resulting in the normal movement of the chain and transmission and causing the shift to be inflexible. Solution: Use kerosene or chain cleaner to clean the chain and transmission pins regularly.

3. The transmission line is too loose or too tight, resulting in the transmission being out of position and causing the shift to be inflexible. Solution: Adjust the transmission trim screws to return the transmission to the correct position.

4. The variable speed line pipe is extruded and deformed, which leads to the increase of friction resistance between the line pipe and the variable speed line, resulting in inflexible gear shifting. Solution: Restore the deformed conduit, or replace it with a new variable speed conduit.

Hello, mountain bikes will have the following conditions will lag behind or fail to change gear, 1, the transmission line is deformed or dirt is too much, the speed line can not move freely in it, the solution: pull out the transmission line, scratch the lubricating oil, or replace the line pipe with a new one.

2. Due to the long use of the finger dial, the finger dial is too worn out and can not be stuck, resulting in the inability to change the speed, or reset after the speed change, the solution: generally can not be repaired, replaced with a new one.

3. The position of the limit screws of the front and rear dials is wrong, resulting in the maximum gear or the minimum gear can not be changed.

You can first see if the variable speed line pipe is deformed, whether the movement can be free, if the line pipe is fine, and it is not a variable speed problem that occurs when the speed is changed to the maximum or minimum tooth, it should be a problem with the dial, if not, change to a new dial. Hope I can help you and have a great ride!