Absolute key 1: Faucet (upper + lower triangle)

If it's not in good condition the whole bike won't ride well, so it's a very important part of a motorcycle.

Unlike the steering wheel of a car, there is basically no hand to turn the spigot on a motorcycle.

Except for the need to turn the head by hand at extremely low speeds, basically the motorcycle will automatically lean and steer according to the road conditions and the owner's actions.

Because of this, the faucet must always keep light, smooth, no special effort operation state. And there shouldn't be any gaps. If this is not achieved, the whole bike will not change direction automatically and smoothly, and it will become very difficult to ride.

Although it is said that as long as it is well prepared once, it will not need to move again for a long time, but unfortunately, if it is to be prepared, it is necessary to dismantle all around the front.

Because this is a very difficult job, so for the DIY technology is not confident of the knight, or recommend to the car shop for assistance.

Although the repair cost of a car dealership can be high, this part is really important and has the value of spending a lot of money to get it right.

These are all parts of the faucet, including the upper and lower triangles and internal bearings.

Absolute focus 2: Rear rocker arm shaft (and rear shock absorber connecting rod)

The most important part of the front is the faucet, the most important part of the rear rocker arm axis. (If it is a car with a single gun rear shock absorber, the rear shock bar must also be included in the most important maintenance items)

Just as the head supports the load of the entire front, the rear rocker arm axis also supports the load of the entire rear.

Although the axis of the rear rocker arm will not rotate left and right like the faucet, it is relatively closely related to the traction force and transmission effect formed by the chain.

The driving force formed by the car weight and the engine makes the rear rocker arm shaft often in a state of high load, so it is quite easy to be damaged, but at the same time, it is located in the deep part of the car body, so it is very troublesome to be prepared. The connecting rod with a single gun after shock absorber is hidden in the lower side of the car body, so it is easy to be rolled up by the rear wheel sand, rain hit and wear.

If these areas are not in good condition, the rear suspension system will not be able to operate smoothly.

No matter how well you put in an advanced shock absorber, it doesn't make sense if the most basic anchors don't work at all.

If it is a senior car, not only the direction of tire rotation, in order to take into account the steering sense of the transverse part, so will be set in the rear bearing.

If the bearing operation is not good, it will seriously affect the overall dynamic of the body. For car manufacturers, even if the cost is high, it is necessary to carry on the car to provide excellent control sense, simply put, is so important.

The rear rocker arm is also one of the first parts recommended after buying a used car because it is a heavy load.

Although it is said that as long as it is well prepared once, it will not need to move again for a long time, but unfortunately, if it is to be prepared, it is necessary to remove all around the rear wheel.

Because this is a very difficult job, so for the DIY technology is not confident of the knight, or recommend to the car shop for assistance.

When removed from the main frame, you can see the axis of the rear rocker arm.

Even though I've written a long piece, it's important to emphasize the two areas above.

(Integrated from WEBIKE China, such as copyright, please contact delete!)