Why do dirt bikes put spare tires on the rear door? What are the benefits of this design?

Off-road vehicles place a spare tire on the rear door, called an "outer spare tire" or "small school bag". This classic design was used in many SUV models, from military vehicles to rugged off-road vehicles. This design was originally designed primarily for practical purposes.

It's different from most SUVs in the trunk. All I could see was the spare tire in the trunk of the SUV. The angle at which the tires are hung under the trunk can affect the vehicle's departure.

If driving on a potholed road or up and down on some large slopes, the spare tire can easily scratch the ground and affect the passability of the vehicle. If you are driving in an off-road pothole, the tire bursts due to the reduced height of the vehicle and the uneven road surface, <>

The spare tire may be too close to the ground to be removed, making it impossible to change the tire for the vehicle. If the vehicle is trapped and unable to move at this time, it can only rely on towing and rescue. In the case of an external spare tire, the space under the rear chassis can also be equipped with auxiliary fuel tanks.

The vehicle can have two fuel tanks, which greatly increases the mileage of the vehicle. For some vehicles that travel long distances, an auxiliary fuel tank is a very practical configuration. Now a lot of Toyota Land Cruisers are imported in parallel, and auxiliary fuel tanks can be added when ordering a car.

It will not be placed like this before leaving the factory. It is the owner of the car who locks the spare tire to the roof rack. The disadvantage is that loading and unloading is still inconvenient.

The advantage is that it saves a lot of space.

The original design intention of the off-road vehicle was a functional requirement, that is, to be able to go off-road, adapt to complex road conditions in the field, and drive for long periods of time on rough roads in the wild. It requires two basic properties: a high chassis and good passability; The fuel tank should be large.

Make sure you go far enough. This is very much in line with the functionality of the dirt bike. The van in the back ensures plenty of loading space to satisfy everyone's "the world is so big, I want to see it".

In addition, the car has a luggage rack on top and a large spare tire in the rear, which gives it a free and rough tough guy image. Off-road vehicles have developed in the direction of sedanization, and various forms of SUVs have appeared. For many urban SUVs, off-road performance is no longer important, and such a large fuel tank is not needed.

The spare tires of many vehicles are also tucked into the trunk floor, but this tough guy bag has become a styling symbol that expresses personality and presence. The trend towards SUVs is getting stronger, which has driven the segment's rapid growth in recent years.

This is because the wear and tear of the off-road vehicle for car tires is relatively large, and the spare tire is placed on the rear door for timely replacement and can save space. This design can play the best replacement efficiency, can make the overall appearance of the model more fashionable and beautiful, more off-road characteristics.

This can increase the suffix of the car, make the car look more stable, and make the car look more domineering. Removing tires from the rear door is a better way to remove the tires, and the space inside the car can be expanded, which can make the vehicle look more off-road, and can achieve cushioning in the event of a car accident, which can reduce personal injury.

In this way, you can make your car more beautiful and make your car have an off-road feeling. In this way, you can prolong the workshop of tire aging, you can better protect the tires, and you can also make your car look better.

The off-road vehicle puts the spare tire on the tailgate, and the scientific name is "external spare tire" or "small school bag". This classic design was first extended from military vehicles to hardcore off-road vehicles, and later was put on many SUV models. The original intention of adopting this design was mainly for practicality.

Off-road vehicles are different from SUV models, and now most SUV models have spare tires placed in the trunk, and the spare tire can only be seen after lifting the floor of the trunk

Due to the completely different body structure of off-road vehicles from SUV models, most of them use a non-load-bearing body structure and a rear integral axle suspension. Therefore, if the spare tire is placed in the trunk, it is a conflict in space and structure. Some buggies also have a spare tire placed under the rear of the car, hoisted under the chassis at the rear of the car.

But there are several problems with this, first of all, the spare tire is hoisted under the rear chassis, which will affect the departure angle of the vehicle. That is to say, if you drive on a pothole road, or when going up and down some large slopes, the spare tire is easy to scrape to the ground, affecting the passability of the vehicle.

Second, if on the off-road journey, driving on the pothole road, the tire bursts, due to the reduced body height and uneven road surface, the spare tire behind is likely to be too close to the ground because the rear of the vehicle is too close to the ground, so that the vehicle can not change the tire. If the vehicle is unable to move because it is stuck at this time, it can only rely on towing and rescue.

Third, if it is an external spare tire, the space under the rear chassis can also be equipped with an auxiliary fuel tank. That is, the vehicle can have two fuel tanks, which greatly increases the range of the vehicle. The auxiliary fuel tank is a very practical configuration for some long-distance crossing guarantee vehicles.

Now many parallel import versions of the Toyota Land Patrol can be optionally added to the auxiliary fuel tank when ordering a car.

Therefore, many SUVs now will design the spare tire into the rear of the body, which is completely similar to the sedan, the benefits, low wind resistance, good fixing effect.

Because off-road vehicles only have a spare tire on the rear door. There is nowhere else to put it.

First, only a small part of the off-road vehicle spare tire hanging, such as Haval H5, Tour, Yusheng, Tuda, Landwind X8, Land Rover, Road Regret, Ranger, etc. do not have a small school bag, second, the off-road vehicle chassis is relatively high, plus most of the non-bearing body is thicker, so the tire will be more crowded on the chassis, third, when the tire bursts, it is more convenient to disassemble the spare tire, of course, the weight of the spare tire is not light, it will shorten the life of the rear door limit switch, although there is a thing called the rear bar top tire device, it is also very inconvenient to open the rear door, So nowadays' small schoolbags are almost all for feelings, or purely for style!

Because it is easy for the off-road vehicle to say that it will get a flat tire after off-roading, so it can be just in case.

Save space in the car, and change the spare tire after the trunk is full.

Because there are still many benefits to being placed on the back door, including being more stable.

The off-road vehicle is greatly affected by the terrain and may have a flat tire at any time, so it can only be placed in the back.

This is because there is no place to put it anywhere else, only on the back door.

There are no rules, maybe it's just for convenience.

There are only two benefits to hanging a spare tire on the tailgate: 1Easy access and placement2Save space in the car. This layout was popular during World War II, due to the harsh conditions in the field, it was often necessary to replace the tires, and in order to facilitate the replacement, many military vehicles were used back wheeled off-road vehicles!

Now off-road vehicles, due to the improvement of performance and use conditions, especially the popularity of urban SUVs, on the one hand, the need to replace tires is greatly reduced, on the other hand, there is a certain impact on the tailgate, so this spare tire layout is gradually abandoned. Another reason is the change in aesthetics, although there are still many people who think that the back wheels are more handsome, but many new generation owners, especially female car owners, do not like this "rough" style.

Nowadays, urban SUVs mainly travel in the city, and there are all kinds of situations, and parking at night should be anti-theft, so that the back-wheeled car is not suitable and is easy to lose. The back wheel type is also not conducive to parking, and the back wheel lengthens the body length, which is inconvenient in the increasingly congested city roads!

Most SUVs, whether high-end or entry-level, use a non-load-bearing body, that is, a sedan platform, while a sedan does not have an independent chassis, it is an integrated body, directly equipped with suspension. The traditional off-road vehicle has an independent chassis, the chassis has a steel frame steel beam, it is difficult to put a wheel on these steel beams, if you put a spare tire, either the trunk is bulging, or the chassis height is reduced, and it is easy to support the bottom in a special road section. Carrying it on the outside of the trunk is the best option.

Now the wind resistance is getting stronger and stronger, and it is rare for people to hang the spare tire on the tailgate.

The lower the wind resistance, the lower the fuel consumption and the less noise, and carrying a spare tire is naturally a thankless task.

There are three main points, one is that the wind resistance of the rear hanging spare tire is high, the second rear hanging spare tire is easy to fall off and unsafe, and the third rear hanging spare tire is actually inconvenient.

Because the wind resistance is high, and there is hanging in the back, it is easy to fall off and unsafe.

The first is because the risk of hanging on the rear door is relatively high, and the second is because many off-road vehicles now have better performance and do not need to prepare a spare tire.

This is because it is easy to produce abnormal noises for a long time, bracket deformation, and loose screws.

Because this is unsightly, it is easy to fall off, and it is not safe.

Because the tailgate is very unsightly.

It should be that the current design is more beautiful and generous.

The spare tire of off-road vehicles is generally thicker and heavier, and it is placed on the rear door for easy disassembly and assembly. In addition, if it is placed underneath like a car, it will reduce the ground clearance, take up space, and affect the passability.

The designer also considered the overall appearance, including the convenience and flexibility when changing, if placed at the bottom, first of all, the chassis distance from the ground should be reduced, and it is extremely inconvenient to disassemble at the top, so it can not be placed in the car.

It's a matter of model design.

It's not that the owner himself tied it to the back.

The off-road vehicle with the spare tire exposed is more wild and gentle.

Absolutely.

The spare tire is generally placed in:

1. Piggyback, that is, you said put it on the trunk door, the advantage is to save space in the car, and it does not affect the spare tire after the trunk is full of items.

2. The chassis is hanged, that is, suspended to the rear of the chassis, when it needs to be removed, open the trunk and have a device to put down the spare tire, and tighten it when it is put away, the advantage is also to save space in the car, and the disadvantage is to affect the departure angle and ground clearance of the car.

3. The trunk is placed, generally there is a compartment in the lower layer of the trunk, the spare tire is placed under the compartment, and the trunk space is above the compartment when the compartment is closed.

4. The top is placed, generally not put in this way from the factory, the owner locks the spare tire to the roof rack, the disadvantage is still that the loading and unloading is not very convenient, and the advantage is that it saves a lot of space.

To sum up, as an off-road or long-distance field trip, the trunk is generally full of accessories and daily necessities, so the piggyback spare tire hanging method is the most convenient and scientific.

Other places are also available, but it's just not convenient to take!

Yes. You can put it as you like, as long as you can.

First, in order to adapt to complex road conditions, off-road vehicles must require the chassis to be raised, which causes the spare tire to not be placed under the trunk like ordinary cars. If it is placed under the trunk, coupled with the height of the off-road vehicle itself, it will be very inconvenient when taking out the spare tire, and it can only be placed on the rear door of the car.

Second, the spare tire on the rear door of the car will make the off-road vehicle look more manly, and it will look very different when placed in other positions. The spare tire of the off-road vehicle is put on the back door of the car, which makes the whole car very rough and bold, and the image of the off-road vehicle itself is very matched.

However, there are also off-road vehicles that put the spare tire in the trunk, not necessarily on the rear door.

The second is that off-road vehicles often have punctures, so put them in the trunk to replace the tires as quickly as possible, so as not to delay things, and because the off-road vehicles often drive on muddy roads, it is easy to get dirty when you put the chassis, and the tires cannot be changed when you touch the whole car in the mud.

Finally, the off-road vehicle tires are put behind a kind of off-road fan, others know at a glance that this car is used for a purpose, and car manufacturers also like this, which is equivalent to a kind of propaganda, telling everyone that our car is an off-road vehicle with outstanding performance. No matter how it develops, this becomes the default rule, and everyone starts to design it this way.

Off-road vehicles are generally driven on rough roads, with high horsepower and a high chassis. So the off-road vehicle chassis itself is higher than that of a family car, and the fuel tank is large, so it is a bit of a lack of space to continue to put the spare tire in the car.

Some enthusiasts drive off-road vehicles to travel, and at night they will sleep directly in the car, which also requires a lot of space. If the spare tire is placed in the car, the chassis of the car will be uneven, and it will be uncomfortable to sleep, and the advantage of the large space of the off-road vehicle itself will be lost.

The spare tire of the off-road vehicle is also more convenient to use on the rear door. The off-road vehicle must be worse than the family car, and the frequency of breakdowns is higher than that of the family car, and the spare tire is easier to take off on the rear door and replace it in time to facilitate normal driving.

Putting the spare tire on the rear door also shows the wild and uninhibited freedom-loving nature of the off-road vehicle, and it is relatively beautiful. However, during driving, it is better to drive carefully and safety first.

The off-road vehicle puts the spare tire on the rear door, which is very convenient when using it.

When we buy an off-road vehicle, it is to take the country road, and we can't let the spare tire be placed on the chassis like the previous car, so that the value of the off-road vehicle is lost, and it will bring a lot of inconvenience when walking on the country road.

The trunk of the off-road vehicle is to put a lot of necessities for yourself when traveling, and if you put it under the trunk like a small car, you will waste a lot of time and take things down to find a spare tire.

The spare tire of the off-road vehicle is placed behind the door, which also plays a role in protecting the car, if the novice often does not pay attention when reversing, it will hit the back door, and the spare tire also plays a protective role.

The spare tire of the off-road vehicle is placed on the rear door, which also has a real visual effect, making each off-road vehicle look very domineering, and a spare tire is placed on the trunk to show the full power of the car.

In fact, the spare tire of the off-road vehicle is placed on the back door, which brings a lot of convenience to each of us when traveling, and saves a lot of precious time when we change the spare tire.