As the weather gradually warms up and the time is a good season for cycling, major motorcycle manufacturers have also begun a new wave of publicity and marketing. With the release of the ultra-light imitation race Wuji 250RR, domestic manufacturers have also begun a wave of body lightweighting, and "lightweight" has become a new traffic password.
And when it comes to lightweight, you can't hide from the material application of car body parts, but for many novices, you really can't tell these messy things, especially the rear fork of the motorcycle, and even many people think that 250NK is an aluminum alloy rear flat fork, and the whole series of Sycoron is an iron flat fork...
So today Oye mushroom mainly talks to you about this topic, how should the motorcycle's damn rear fork be distinguished?
Of course, it's useless to know these things, after all, the car is there, and whether you buy it or not is like this. But when you understand these things, you can at least recognize at a glance what the material of most motorcycle rear forks is, and even if the vehicle has not yet been released, you can have a general understanding of the car.
Today we will take the following 4 new cars that have not been listed + 1 model that has been listed as an example, please read the following flat fork, silently remember the answer.
01、 Apulia GPR250S
02、 Malagautti G250E
03, Sycoron RE5
04. Molini Sevenzo
05、SUM SD650
Next, publish the correct answer:
Iron, iron, aluminum, aluminum, aluminum, everyone please check their answer cards, see if you have done a few questions correctly, all of them can reward me with a small red flower, first come, first served.
Well, no joke, I believe there must be a lot of Meng Xin who still feel confused when he sees here, these rear flat forks obviously look similar, why are some aluminum alloys, some are steel? How exactly should this be divided? Don't worry, I'll show you one by one.
The above six kinds of flat forks basically cover most of the forms of flat forks on the market, of course, I have not found professional terms for the composition of the forks, if the description is wrong, please ask the big guy to teach.
The rear flat fork can be roughly divided into two materials according to different materials, four categories.
Let's first look at the steel pipe after the flat fork, the common steel pipe flat fork on the market can be divided into two categories.
The first type is the ordinary steel pipe rear flat fork, which is the most common motorcycle rear flat fork on the market.
For example, the Apulia GPR250S's flat fork, which is basically similar to the Z650's flat fork, is essentially welded from processed steel pipe parts, which looks very stout, much like aluminum alloy parts. However, it is empty internally, but indicators such as strength are absolutely up to standard and can be used with confidence.
Classification method:
In simple terms, as long as you see that the motorcycle rear fork is tubular (square pipe, special-shaped pipe are counted), and only the fixed nut is exposed on the surface of the rear fork, then the car is most likely a steel pipe rear fork, no matter how tiger it looks.
The second category is split welded steel rear flat forks, which at first glance look a lot like aluminum rear flat forks, but they are not.
For example, the rear flat fork of the Malagauti G250E, similar to the Spring Wind 250NK, 250SR rear flat fork, this kind of rear flat fork is welded by multiple steel components, at first glance it is actually very similar to the aluminum alloy rear flat fork, because the rear fixing method looks as simple as the aluminum alloy rear flat fork, but this is still a steel rear flat fork.
Through the flat fork structure and the welding details of the tail of the flat fork, it is easy to distinguish it from the aluminum alloy, and the steel pipe special-shaped flat fork will have many welding marks, and the aluminum alloy special-shaped flat fork is mostly formed in one. As long as you compare it with the traditional aluminum alloy backswitch, you can find that it is not an aluminum alloy backswitch at all.
As for the aluminum rear flat fork, the common ones on the market are also divided into two categories.
The first type is a cast-formed one-piece flat fork
For example, the Secolon RE5, and the Morini Severnza's rear flat fork, although different colors, are aluminum alloy cast rear flat forks (single rocker arm also belongs to the aluminum cast rear flat fork). This type of flat fork is mostly used in large-displacement models and can provide better rigidity for the whole vehicle.
This type of rear flat fork is characterized by one-piece molding, you can't see other welding marks, and the appearance is usually thicker, with hub fixing screws and other things exposed.
There are no welding marks on the rear flat fork, it is a whole. Then you can be sure that this is basically an aluminum alloy flat fork.
As for the difference in tail color, it is actually caused by product design, some manufacturers will not treat the tail of the flat fork, in order to retain the natural color of the aluminum alloy, which can be seen at a glance, which is an aluminum alloy rear flat fork, such as RE5. Some manufacturers will spray paint the entire rear fork based on aesthetic considerations, such as The rear fork of Molini Severnza, although it is black, you can't see the metallic color of the aluminum alloy, but it is indeed made of aluminum alloy.
The second type of aluminum alloy rear flat fork is mainly welded molding (mainly civilian, high-end flat fork is not mentioned today).
For example, SWM's SD650, Seclon RG3, Benta Jinjira high-end version, and most of the off-road vehicles of the flat fork, the rear fork of this type of car mostly adopts the processing method of split welding, and the biggest feature of this type of flat fork is to meet the lightweight at the same time, can provide the vehicle with performance in line with the design standards.
Seeing here, some people will definitely feel puzzled, what aluminum alloy? Isn't the shape of this flat fork the same as the one welded with steel pipe?
If the rear flat fork is aluminum, everyone can still be relatively recognizable, such as the SD650 back fork in the picture above. But once the flat fork is changed to black, most people will not recognize it at all. For example, the back fork of Benta graystone, and the rear flat fork of Wuji 250RR, after changing the color, it is really difficult to distinguish whether they are aluminum or steel.
How do we distinguish at this point whether this welded rear flat fork is aluminum or iron?
Simply put, there are two ways for us to judge what kind of material this rear flat fork is, first of all, look at the welding texture, the welding method of aluminum alloy is different from that of steel pipe, and the welding pattern of aluminum alloy is relatively thicker than that of steel pipe, and it will carry fish scales.
However, the light meets this point is not enough, but also need to observe the tail of the flat fork, due to the nature of the metal, the same volume of aluminum alloy is not necessarily better than steel in strength, so the non-integral forming of aluminum alloy flat fork, often the tail of the flat fork for finishing, so that it is harder, to avoid breaking due to external forces.
There is only fish scale welding, not necessarily an aluminum alloy flat fork.
The tail is handled well, and it is not necessarily an aluminum alloy flat fork.
Both fish scale welding, flat fork tail is also well handled, most likely aluminum alloy rear flat fork.
summary:
The above method can basically let you identify 90% of the motorcycle fork material on the market, and the biggest use of this set of things is to help you deepen your understanding and understanding of the vehicle. The back flat fork of the steel pipe is actually not bad, but the application of aluminum alloy material can often make the product icing on the cake. And in the future, if you see the vehicle spy photos again, you don't have to wait for the media to publish, you can roughly know what materials are used in this car, how the market will be positioned, and so on.
Of course, the most reliable way is to use magnets, only magnets will not deceive you, I once had a decision on the rear fork of a car, he looked very much like aluminum, according to the price, he should also be aluminum, but when I tried with magnets, the magnet actually sucked up...
I hope you can learn this useless cold knowledge, of course, I am not very complete, if there is a big guy in the comment area, welcome to talk about this topic with you again.