On the question about mountain bike flywheels, what are bicycle flywheels and sprockets

99% of the speed mountain is hovering. I haven't seen a card type.

The speed is basically a card fly, unless it is some very low-end 8-speed cars, small brands or copycats will mostly use.

There has been no cassette since 2000, and the 6-speed and 7-speed hubs are actually the same and compatible.

4. Yes, you can't.

5. It cannot be universal.

There are spinning and flying fast, and there are also flying cards.

The speed is basically a card fly.

The speed is basically spinning, and the hub should be compatible with 7-speed spinning.

4. Use other tools to dismantle the spin flight.

5. I know that the 9-speed rear derailleur is compatible with the 8-speed, but I don't know if the 8-speed rear derailleur is compatible with the speed. I guess so, because the derailleur itself is stepless, and its stroke is determined by the knob gear.

1.There is a card fly, see Merida Warrior 600D for details

It must be stuck, but the 8s also has a spin fly, which is very, very rare.

It's definitely spinning, but it's compatible with 7S spinning.

4.I don't need that.

5.This depends on the level of the rear derailleur, such as the Shimano Tourney class, but to the Altus (M310 set), the above 8S can also be, the Shimano level: Sis, Tourney, Altus, ACERA, Alivio (8S M410 set).

Summary. Hello, this situation is caused by a stuck override clutch in the rear flywheel. When the daughter in the clutch is stuck, the clutch loses its effect, causing the wheel to push the chain and crankset in reverse.

To repair this fault, disassemble the rear cassette and replace the internal clutch or replace the clutch over. There is a time limit for the first reply, if you have any questions, you can reply and answer them in detail.

Hello, don't worry, I can ask for your question, but wait a minute, I need text for about 2 minutes.

Hello, this situation is caused by the overtaking clutch in the rear flywheel stuck Zheng do suspicion of the banquet. When the gold in the clutch is stuck, the clutch will lose its effect, causing the wheels to rotate the chain and crankset in the opposite direction. To repair this fault, disassemble the rear cassette and replace the internal clutch or replace the clutch over.

There is a time limit for the first reply, if you have any questions, you can reply and answer them in detail.

Flywheel: Mounted on the rear end of the frame, the rear fork tail end, the right side of the axle outside the rear wheel set. There are different brands (such as Japan's SHIMANO, the United States' SRAM, Taiwan's Sunshine, the top three in terms of market share), and each brand has different speed levels such as 7-speed, 8-speed, 9-speed and 12-speed (with a few wheels).

<> crankset: Mounted at the bottom of the bottom bracket of the frame. The brand specifications are the same as above, but there are also differences. The crankset is composed of: the left crank, the bottom bracket, the right crank and the crank.

<> crankset, flywheel, chain, and bottom bracket of the frame (invisible from the outside) form the "transmission system";They work together to complete the variable speed function: the finger dial, the front dial, the rear dial and the variable speed steel wire connected to each other form the "shift system". Usually the above two parts are referred to as the "shift kit".

For example, the complete "middle set" of Himano includes all of the above. (The "big set" includes the front and rear brakes).

"Sprocket" is a layman's term (if he tells a merchant to buy a "sprocket", he may be ignorant). Because the flywheel and crankset, including the two small wheels on the rear derailleur, are all chain-running, they can be called "sprockets".

Bicycle flywheel is divided into multi-stage flywheel and single-stage flywheel, multi-stage flywheel is on the basis of single-stage flywheel, add several flywheel pieces, combine with the sprocket on the central shaft, form a variety of different transmission ratios, thus changing the speed of the bicycle.

The single-stage flywheel consists mainly of a coat.

It is composed of parts such as flat block and core, jack, jack spring, washer, wire block and steel ball. The working principle of its single-stage flywheel: when the pedal is stepped forward, the chain drives the flywheel to rotate forward, then the flywheel internal tooth and the jack are contained, and the rotating force of the flywheel is transmitted to the core through the jack, and the core drives the rear axle and the rear wheel to rotate, and the bicycle moves forward.

By assembly method;There is a threaded type;Cass-type;There is also a kind of dead wheel, which is a piece of iron with teeth, which is generally used in cars such as beach cars

According to the speed mode: there are variable speed multi-stage flywheels, multi-stage generally have 5, 6, 7, 8, 9, 10 pieces, there are single-stage flywheels with constant speed;

There are two kinds of flywheels, single-speed and variable, the single-speed ones are generally used for ordinary bicycles, and the variable speed ones are used for mountain bikes and road bikes

The main stream of mountain cassette is divided into 3 8-speed, 9-speed and 10-speed, and now the mainstream of the competition level tends to be 10 speeds, and the competition level is divided into leisure and recreation and competition, and the size of the leisure is a little larger, and the competition is a little smaller.

There are two ways to install a single-speed flywheel and a multi-speed flywheel, one is to twist it in, and the other is to put the whole flywheel into the chicken head and then twist the lock ring.

1. When disassembling the flywheel, you need to use a special flywheel removal tool with a chain flywheel fixing wrench to loosen the flywheel cover. While removing the flywheel is not part of the usual maintenance, it does make the drivetrain easier to clean.

2. Remove the rear wheel from the frame, remove the quick-release lever, and pay attention to the small springs on both sides. Attach the flywheel cover tool to the flywheel cover so that the spline and groove are aligned. If the contact is shallow and the Flywheel Cover tool is hollow, use the quick-release lever to secure the tool.

Some flywheel cover tools come with a needle instead of a quick-release lever.

3. Install the flywheel fixing tool so that it completely engages with the flywheel blade. The function of the flywheel fixing tool is to prevent the flywheel tower base from rotating when the flywheel cover is loosened. If you're facing the flywheel, make the tool's handle on the back side.

4. Now unscrew the flywheel cover. Place the wheel on the workbench with the flywheel facing upwards and use a large adjustable wrench to twist the flywheel cover tool counterclockwise while applying reverse force to the flywheel retention wrench. Apply a certain amount of pressure to the wrench to prevent the chain from falling off the flywheel.

If the chain slips repeatedly, the flywheel is worn. Switch to a larger cassette and try again. If a quick-release lever is used, the flywheel cover will need to be removed before the quick-release lever can be unscrewed.

Mountain bike flywheels not having power can be due to several reasons.

Wear of the flywheel gears: If the flywheel gears are worn too much, it may affect the meshing between the gears, and the flywheel will not have power due to the lack of bright liquid.

Problems with the connecting shaft: If the connecting shaft of the flywheel is worn or damaged, it may affect the rotation of the flywheel, causing the flywheel to have no power.

Improper adjustment of the flywheel: If the flywheel is not adjusted properly, it may affect the efficiency of the flywheel, resulting in no power for the flywheel.

It is recommended that you inspect the bike, determine the cause and carry out maintenance repairs. If you are unsure of the reason or will not maintain the auto button, it is recommended to go to a professional car dealer to consult a professional technician.

If the flywheel turns and the wheel doesn't, it's definitely broken. You can change the flywheel.