Affordable price made the Chinese 50-cc moped "Alpha" the literal favorite of demand for "stools", in the same bundle goes its slightly more hardy twin brother "Delta". Economical, with an engine displacement of 72 cc., And air-cooled, the Alpha moped is unpretentious and easy to maintain. The understandable design of the Alpha moped engine allows you to repair or tune equipment yourself.
Before disassembling the engine of the Alpha moped, fix the scooter with a central footboard and release it from the plastic. Disconnect all engine power systems and do not forget to drain the oil.
We remove the engine together with the transmission, and on a flat surface we continue home repairs of the Alpha moped.
If this is your first do-it-yourself alpha repair on a moped, and you need to disassemble it, do not forget to sketch a diagram of how everything stood in its place! If you need to replace the valves, or if there are gaps of contact, then they need to be removed:
To complete the repair of the Alpha moped engine, after replacing the parts, we start assembling the engine in the reverse order, put everything in its place, observing the marks. Don't forget to add fresh oil.
The gearbox of the Alpha moped sometimes fails and requires constant attention. Repairing a checkpoint at home is not particularly difficult for a beginner.
We carefully read the instructions for the alpha moped do-it-yourself gearbox repair.
When the repair of the Alpha moped box is over, assemble the gearbox in the reverse algorithm.
VIDEO
Repair of the Alpha moped for many begins almost immediately after the acquisition. Thanks to the availability of app. parts and the simplicity of the engine of the Alpha moped, tuning is common. This can be a replacement for a not very comfortable home seat, or an increase in the volume of the engines up to 110 cc. Replacing the star from 14 to 15 or even 16 will increase the speed to 10 km / h.
Increase in cylinder displacement - replacement from 50 cc. 70 cc., will add power, which is sometimes not enough. To do this, in addition to the cylinder head, you will have to change the pistons and the carburetor. You can carry out such maintenance of the Alpha moped yourself. If you bought a do-it-yourself Alfa moped repair gearbox and engine, it will be a good opportunity for you to study your technique.
And finally, a few useful tips, which will make the Alpha moped repair a more enjoyable experience for you.
Dismantled the timing and CPG? Place the parts in separate boxes. The position of the gears and forks, sketch on paper before removing.If you decide to increase the speed of the Alpha moped using an asterisk, do not forget that the front and rear change at the same time.
Watch the speed, prevent clutch wear, change fluids in a timely manner.
Do not be afraid of repairs, learn the mathematical part, watch video tutorials, and the services of a mechanic will not be useful to you.
Hang up trunks, change headlights and mirrors. The Alpha moped is from the series that will respond to any of your concerns with reliability in thousands of your future kilometers.
Any, even the most advanced motorcycle equipment needs careful handling and professional care. The engine is the heart of the Alpha moped. Against the background of improper handling of it, the consequences can be unpredictable. In order to avoid the risks of irreversible damage to the moped, it is important to know how to independently disassemble and assemble the engine of this model. Repairing is easy. This will require experience, as well as knowledge of some of the nuances.
The engine of the Chinese moped Alpha has characteristic features, thanks to which fans of motorcycle technology prefer this particular model.
Engine displacement - 72 cc. With the right approach, it can be upgraded to 110 cc. Also, if you wish, you can increase the speed by 10 kilometers.
The weak point of the engine is the gearbox, which requires close attention and delicacy. ... When repairing the "heart" of a moped, you need to know how to correctly disassemble and assemble this part of a motorcycle "body".
Alpha is equipped with a powerful motor, the circuitry of which is complex. If you can't figure it out on your own, it is recommended to contact an experienced specialist. The repair price is quite affordable.
The Chinese moped Alpha, the price of which is democratic, does not cause many problems for the owners. Interruptions in the moped engine have several reasons, having dealt with which, you can quickly fix the breakdown.
Dismantling the moped engine
So, if the engine starts with great difficulty, the muffler “shoots”, and smoke comes out of the pipe, it means that the moped is “capricious” due to problems with the carburetor. In order to solve this problem of the Alpha moped, you must:
clean the carburetor;
thoroughly clean the air filter of the moped;
tighten the screws;
adjust the carburetor of the moped.
If Alpha slowly picks up speed, and its engine is not able to develop the declared power, then the reason lies in the incorrect operation of the moped's valves. He can also "get sick" due to gaps and incorrect timing. In order to make the Alpha moped function normally, it is necessary to replace the used valves with new ones.
If the Alpha moped is not able to develop the required speed, despite the roar of the engine and solid rpm, it is impossible to stop the spinning wheel, and gear changes are intermittent, then the cause of the malfunction is clutch wear.
To eliminate the breakdown, you must do the following manipulations:
remove the engine;
remove the plastic cover;
unscrew the clamping screw;
unscrew the adjustment mechanism and tighten the screw tightly;
start a moped;
turn on the first speed and drive a few meters.
Another cause of a moped engine malfunction may be wear on the drive sprockets. If they are badly worn out, they must be replaced with new ones.
You may encounter a problem with engine overheating. The situation can be corrected after adding oil. If oil leaks out, an urgent need to contact a professional service .
Alfa moped engine overheating
It is quite easy to disassemble the Alpha engine. This requires:
"Arm" with a key;
unscrew the bolts on the intake manifold (10);
unscrew the cylinder covers and the bolts located there (4 pieces);
remove the cylinder head.
After carrying out the necessary manipulations, it is necessary to properly assemble the engine, reinstalling all the parts.
A diagram can help to deal with the nuances. Also, a lot of useful tips regarding the repair of the most important "organ" of the Alpha moped are contained in the training video.
It is necessary to disassemble the gearbox in order to replace used parts. This is done after the following parts have been dismantled:
Repair of this part of the engine is carried out as follows:
using a screwdriver or blade, remove the retaining ring and the drive gear;
carefully unscrew the bolt fixing the gear and remove the gearshift mechanism;
remove the shift fork and shaft;
remove the crankshaft and drum (including the core);
after replacing the worn-out part with a new one, reassemble (in reverse order).
In order to carry out an independent engine repair correctly, you need to familiarize yourself with the training videos. The engine diagram of this model will help not to confuse the location of the forks and gears. If there is no access to the scheme, then you need to mark them on a sheet of paper.
The Alpha moped rarely needs repair. If the owner is not confident in his abilities, then the repair should be carried out by a professional. Otherwise, the issue price will be very high.
Alfa moped engine repair is quite simple if you watch this video. You can repair the moped with your own hands without contacting service centers.
So let's get started. First, a star is put in place. After installing it, the starter is put in place.
To assemble the gas distribution mechanism, you should pay attention to the following details:
It is imperative to make sure that the chain vibration damper is working correctly (if you blow in, then it should let air a little);
When the damper contacts the tensioner, friction occurs (the rough surface of the tensioner should be polished).
To prevent the sprocket from jumping off the axis, grease it with grease. Then the cover is installed, pre-lubricated with sealant. After this procedure, install the starter sprocket and the chain damper.
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Instructions from a specialist
Instructions from a specialist
List of required actions
Checklist for verification actions
Elimination of the most frequent breakdowns
Effective customization rules
Description of basic connections
Disassembly instructions, repair tips
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As we all know, any motorcycle equipment wears out and breaks down over time, especially if it is mishandled. The most important part of the Alpha moped is its engine, which, if mishandled or repaired, or replaced with parts, may not work or work incorrectly. To avoid such problems, you need to know how to properly repair the Alpha moped engine with your own hands. It is not difficult to do this with the necessary experience and knowledge.
When the moped does not start, the muffler fires and black smoke comes out of it, this means that you have a problem with the carburetor. To fix these problems, you will need to clean the carburetor and air filter, also tune the carburetor, and tighten the bolts well.
If your moped takes a long time to accelerate, and the engine lacks standard power, the problem is valve breakage. The old valves need to be replaced with new ones and the moped will work again.
If the Alpha moped cannot accelerate to the desired speed, although it has high rpm, and the engine roars like abnormal and intermittently shifting gears, the problem is clutch wear. To repair the clutch you need to do the following: you must remove the engine and the plastic cover from it, then unscrew the tightening bolt and the adjustment mechanism, then tighten the tightening bolt tightly, start the moped. After all this, you need to drive a little at first speed, about a couple of meters. There is also another reason for a malfunction associated with the engine - wear leading stars , in this case you will have to replace them with new ones.
Overheating of the engine ... This problem can be solved very simply - add oil. If suddenly oil will leak from somewhere, you should definitely contact a professional.
In order to disassemble the engine, you need to do the following:
Unscrew the screws in the intake manifold.
Remove all cylinder covers and cylinder screws.
The gearbox is disassembled to replace parts such as rotors, clutches or cylinders.
In order to disassemble the gearbox, you need to do the following:
Remove the retaining ring, then the drive pinion is removed.
Unscrew the fixing gear screw, then remove the gearshift mechanism itself
Remove the shift fork and shaft, then the crankshaft with the drum.
Collect everything back to front.
And in conclusion, we want to say that although the Alpha moped rarely breaks down, it should not be disassembled and repaired by yourself if you do not have enough knowledge and experience, or you are simply not completely sure that you can cope, since if you want to save money, you can lose a lot more ... Therefore, you should not refuse the services of professionals. But still, if you decide to repair the engine of the Alpha 110 moped yourself, do not forget to use the diagram or training video. And if there is no diagram, then mark the location of the parts on a piece of paper so as not to forget.
VIDEO
VIDEO You may be interested in an Alpha 125 cc engine with automatic clutch, tuning
Stages of self-disassembly-assembly of the engine of the Alpha moped
Any, even the most advanced motorcycle equipment needs careful handling and professional care. The engine is the heart of the Alpha moped. Against the background of improper handling of it, the consequences can be unpredictable. In order to avoid the risks of irreversible damage to the moped, it is important to know how to independently disassemble and assemble the engine of this model. Repairing is easy. This will require experience, as well as knowledge of some of the nuances.
The engine of the Chinese moped Alpha has characteristic features, thanks to which fans of motorcycle technology prefer this particular model.
Engine displacement - 72 cc. With the right approach, it can be upgraded to 110 cc. Also, if you wish, you can increase the speed by 10 kilometers.
The weak point of the engine is the transmission, which requires close attention and delicacy. When repairing the "heart" of a moped, you need to know how to correctly disassemble and assemble this part of a motorcycle "body".
Alpha is equipped with a powerful motor, the circuitry of which is complex. If you can't figure it out on your own, it is recommended to contact an experienced specialist. The repair price is quite affordable.
The Chinese moped Alpha, the price of which is democratic, does not cause many problems for the owners. Interruptions in the moped engine have several reasons, having dealt with which, you can quickly fix the breakdown.
Dismantling the moped engine
So, if the engine starts with great difficulty, the muffler “shoots”, and smoke comes out of the pipe, it means that the moped is “capricious” due to problems with the carburetor. In order to solve this problem of the Alpha moped, you must:
clean the carburetor;
thoroughly clean the air filter of the moped;
tighten the screws;
adjust the carburetor of the moped.
If Alpha slowly picks up speed, and its engine is not able to develop the declared power, then the reason lies in the incorrect operation of the moped's valves.He can also "get sick" due to gaps and incorrect timing. In order to make the Alpha moped function normally, it is necessary to replace the used valves with new ones.
If the Alpha moped is not able to develop the required speed, despite the roar of the engine and solid rpm, it is impossible to stop the spinning wheel, and gear changes are intermittent, then the cause of the malfunction is clutch wear.
To eliminate the breakdown, you must do the following manipulations:
remove the engine;
remove the plastic cover;
unscrew the clamping screw;
unscrew the adjustment mechanism and tighten the screw tightly;
start a moped;
turn on the first speed and drive a few meters.
Another cause of a moped engine malfunction may be wear on the drive sprockets. If they are badly worn out, they must be replaced with new ones.
You may encounter a problem with engine overheating. The situation can be corrected after adding oil. If oil leaks out, an urgent need to contact a professional service.
Alfa moped engine overheating
It is quite easy to disassemble the Alpha engine. This requires:
"Arm" with a key;
unscrew the bolts on the intake manifold (10);
unscrew the cylinder covers and the bolts located there (4 pieces);
remove the cylinder head.
After carrying out the necessary manipulations, it is necessary to properly assemble the engine, reinstalling all the parts.
A diagram can help to deal with the nuances. Also, a lot of useful tips regarding the repair of the most important "organ" of the Alpha moped are contained in the tutorial.
It is necessary to disassemble the gearbox in order to replace used parts. This is done after the following parts have been dismantled:
Repair of this part of the engine is carried out as follows:
using a screwdriver or blade, remove the retaining ring and the drive gear;
carefully unscrew the bolt fixing the gear and remove the gearshift mechanism;
remove the shift fork and shaft;
remove the crankshaft and drum (including the core);
after replacing the worn-out part with a new one, reassemble (in reverse order).
In order to carry out an independent repair of the engine correctly, you need to familiarize yourself with the tutorials. The engine diagram of this model will help not to confuse the location of the forks and gears. If there is no access to the scheme, then you need to mark them on a sheet of paper.
The Alpha moped rarely needs repair. If the owner is not confident in his abilities, then the repair should be carried out by a professional. Otherwise, the issue price will be very high.
The Alpha Chinese moped from the Viper company has been sold a lot in the Russian Federation in recent years. This model has both pluses and minuses, for example, an indisputable plus is a low fuel consumption per hundred kilometers, only 2 liters of fuel.
The moped can be loaded up to one hundred and twenty kilograms, while it itself weighs eighty-one kilograms. The Alpha moped is equipped with an air-cooled engine, two brakes: front and rear, a four-speed manual transmission, 2 shock absorbers.
In addition, mud flaps were installed on the rear and front wheels on the Alpha model. They will help protect the driver and engine from splashing water and dirt.
The Alpha engine has a volume of seventy-two cc, with the help of improvements, you can overclock the engine to one hundred and ten cc with your own hands. You can replace the front sprocket, from 14, which stands for Alpha, to 15, 16, to whom which suits. If you install an asterisk 16, then the speed will increase by seven to ten kilometers per hour, but the thrust will go away significantly.
A star with seventeen teeth will allow the moped to accelerate up to thirteen kilometers per hour, which does not affect traction. The best option is a fifteen-toothed one, while you need to remember that it is necessary to change both stars: the front and rear, as well as the chain.
There are also other tuning solutions for the Alph moped: make an additional bag - a box for various tools, a substitute for a glass with a drink or water. The Alpha seat is not entirely comfortable, you can replace it with a more rigid fifteen millimeter plywood.
The individuality of you and your moped can be emphasized by airbrushing or replacing headlights and turn signals.
Any equipment sooner or later wears out and requires repair, especially in mopeds, this is the engine. In our case, this is a 4-stroke engine that needs to be diagnosed and repaired according to the following parameters:
1. Adjustment of valve clearances, such a need arises if characteristic knocks appear in the cylinder head, violations are found in the clearances.
2. Removal and subsequent installation of the cylinder head - is necessary when the combustion chamber is clogged with carbon deposits, as well as for replacing and grinding in the valves.
3. Complete disassembly of the cylinder head - if the valves are no longer tight, also to replace the oil scraper valves, caps.
4. Removal and installation of the entire cylinder, generator rotor and electric starter.
5. Likewise, removal and installation of the piston and piston rings, chains.
6. Disassembly and assembly of the clutch, crankshaft, gearbox.
After a thousand kilometers, the engine needs to be checked for the first time, subsequent checks must be done every four thousand kilometers. All these actions must be done when the engine has already cooled down.
In an effort to make something new and different, motorcycle owners resort to tuning their two-wheeled friend. Often, the appearance of the bike is simply boring, and the engine power is no longer enough. That is why such a thing as tuning was invented. Thanks to the improvement of your motorcycle, you may end up with a completely different bike that will delight not only you, but also those around you. In addition, when upgrading a motorcycle, you can pay a lot of attention to detail and remake the bike so that it is more comfortable to sit and move on it. In general, tuning a moped is a purely individual thing, but motorcyclists sometimes do not have enough inspiration to come up with a new image for their bike. That is why, in this article, we will analyze the tuning of the alpha moped.
The alpha moped is one of the most popular mopeds today. Its prevalence is associated with a low price and a large number of opportunities that it gives to its owner. Most often, models with an engine volume of 100-125 cm 3 are chosen for purchase. This power is enough to accelerate the moped to 100 km / h and feel comfortable. Also "alphas" are famous for their low fuel consumption, which is also very important. But, perhaps, the main advantage of this moped is its maintainability, because there is not a lot of electronics here, and all power units, in principle, are quite simply arranged. In general, the alpha moped is a pretty good motorcycle for rural areas or small towns, where it is much faster and more convenient to move on two-wheeled vehicles. However, each owner of "alpha" sooner or later comes up with the idea of finalizing and tuning a moped. What to do in this case?
As we said above, the idea of tuning comes suddenly, and at this moment you most likely already know what exactly you would like to add. If you still do not know where to start, then think - what would you like to improve? After reading our article, you will find out what interesting things can be done with a moped, and what tuning is the most urgent now.
When improving your moped, you can tackle the chassis or the exterior. And if you can somehow figure out the appearance yourself, then engine tuning is a more serious thing. We'll start with the engine.
There are many reasons for tuning the engine of an alpha moped. One of them is the lack of top speed.If you also desperately need a higher speed, for example, you often drive on the highway, then now you can increase it. All you have to do for this is to change the gear ratio. The gear ratio is the ratio of the number of teeth of the driven gear to the teeth of the driving gear. Based on this rule, it can be concluded that in order to increase the maximum speed of the moped, a smaller gear must be installed on the rear wheel. Accordingly, the fewer teeth on your new gear, the faster you can accelerate your moped.
By replacing the gear on the rear wheel, you get a small increase in the top speed of the alpha moped. As a rule, this figure is added to 15-20 km / h, which is quite good if you often have to spin the engine up to maximum speed. The only thing to consider is that the first transmissions will now be shorter. And from this follows a little advice - do not spin the engine in first gears to maximum rpm, otherwise you will lose neutral speed due to the bushing stuck in the clutch.
And if tuning a moped with an engine may seem too boring, then changing the appearance of the "alpha", everything becomes much more interesting. In fact, if you are going to make a really decent tuning, then you cannot do without imagination. It is important to imagine the future appearance of the moped - in what colors it will be decorated, what kind of character it will have, aggressive or classic. Make some sketches and then you will have a more interesting result. We will tell you what you can add and modify.
The first, and most commonplace, when you are tuning an alpha moped is a new rear-view mirror. Factory mirrors on the alpha moped look pretty sad, so you can buy new ones. It is a good idea to install mirrors with turn signals, which will not only improve the appearance of the moped, but also make the mirrors more practical.
Speaking of turn signals, the turn signals on the alpha moped are quite small, although they shine quite well. Nothing prevents you from updating them, for example, painting them, changing the light bulb to a brighter one, or just buying new turn signals. The same is the case with the brake light, headlight.
Some people prefer to replace the discs with more interesting ones. Of course, buying and installing new discs is not the easiest option, but the result will be much more noticeable than, for example, replacing turn signals. In general, moped wheels play an important role in appearance, so if you pick up some unusual discs, you can get a completely new look as a result.
After wandering around the motorcycle shops a little, you can find the recently popular filters of zero resistance. Such a little trinket also adds some zest to the alpha moped. In addition to the appearance, it also improves the technical parameters of the engine. If you install such a filter on an alpha moped, the engine will receive more air, which means it breathes better. This gives some power boost, but you probably won't notice it.
A complete repainting will help to radically update and make high-quality tuning of the alpha moped. In the case of the "alpha", we have chrome fenders, a trunk, a steering wheel and some other elements that make no sense to repaint. The only color that would look good when repainting these elements is matte black or, in general, pasting with liquid rubber. Choosing a good color scheme, you can improve the appearance of the moped for the better.
VIDEO
MashinaPRO "Repair and maintenance" Debriefing, or Adjustment of the carburetor unit of the Alfa moped
Debriefing, or Adjusting the carburetor assembly of the Alpha moped Debriefing, or Adjusting the carburetor assembly of the Alpha moped
After the moped has been run-in,
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After the moped runs in, a full cycle of technical inspection is carried out, which includes changing the oil in the transmission and engine, as well as adjusting the valve clearance. In addition, the manufacturer recommended replacing the air filter element. During operation, violations of the dynamics are possible, requiring an individual adjustment of the carburetor on an Alfa moped. Skilled alignment of this unit will improve ride quality and help reduce fuel costs. This operation is similar to adjusting the carburetor on a scooter and will not cause much trouble for both beginners and experienced riders.
Most motorists know the principle of operation of the carburetor unit and the necessary conditions for its stable operation. The main indicator for the full functioning of the engine is the composition of the combustible mixture, which should consist of 15 parts of air and 1 part of gasoline. Violation of the ratio leads to enrichment or, conversely, to depletion of the composition.
instability XX;
difficult start;
pops in the carburetor;
the motor is not picking up speed;
white soot on a candle.
Correct operation of the engine depends on adherence to the rules of operation and the exact fulfillment of the requirements of the inspection. Before you start setting up the carburetor on the Alpha moped, you must first carry out a number of works:
Clean carburetor housing.
Replace spark plug.
Replace air filter.
Make sure the connections are tight.
Now you need to accurately set the level of gasoline in the float chamber by bending the float tab. By connecting a transparent hose to the drain connection, it is possible to determine the absolute level of the fuel. For this, the hose is lifted up. Usually the height is at the joint of the carburetor caps.
The next item is the adjustment of the idle system with the screws of quantity and quality. The whole process takes place on a warm engine. The quality screw is screwed in until it stops and then unscrewed by two turns. Start the engine and, turning this screw in both directions, achieve maximum speed. After that, use the amount screw to reduce the speed to the minimum stable. The need to repeat the procedure several times until the desired result is obtained is not excluded.
Correction of the middle speed range is performed by raising or lowering the needle. To do this, unscrew the throttle nut, remove the needle and rearrange the corkscrew in one of the grooves: above the middle division for depletion of the mixture and below for enrichment.
High-quality operation of the engine at high speeds is ensured by the value of the main jet ... Therefore, the tuning of the carburetor on the Alpha moped will be completed only after the selection of the appropriate jet number. If the carburetor gave out a lean composition, then it is worth installing a part with a higher throughput.To make the mixture lean, you need to act exactly the opposite - put a lower number.
You can check the accuracy of the settings by inspecting the spark plug insulator. If it is light or brown without carbon deposits, then the system is adjusted normally. In the case when the threads and the insulator of the spark plug are smoked with black carbon, then the mixture should be adjusted to medium speed.
After arriving at the dacha, I decided to attach it with a filter and a turn signal, but I didn’t take a long time to attach the fairing, but then how much joy it was when I was driving and the wind didn’t blow on me as much as before.
First, I undertook to saw the fasteners, dug up some kind of aluminum lid in the shed, marked two strips of 25 cm each and brushed this lid with an electric jigsaw.
Then for a long time I gave these strips a form of fastening. Then I wrapped them all with black electrical tape for aesthetics.
it turned out like this. I like it and the wind stopped blowing so much and it became clear during the day and it looked like a motorcycle laugh
after the fairing, I redid the signal, I didn't like it from the very beginning.
it became so, it seems to me much better.
Moped Alpha sport 110 cm3
Increased power, SPORT front fairing, SPORT styling.
Overall dimensions - length, mm 1480
Overall dimensions - width, mm 380
Overall dimensions - height, mm 880
Engine displacement, cm3 110 cm3 (according to documents 50 cm3)
Maximum speed, km / h 100
Maximum load, kg 120
Cooling system air cooling
Fuel tank volume, l 5.5
Engine start: electric and mechanical kick starter, remote signaling.
Why are Alpha mopeds attractive?
The Chinese mopeds of the Alpha series, which have appeared on the Russian market since the beginning of the century, have won the well-deserved recognition of our fellow citizens. And no wonder!
Engines for mopeds of the Alpha series, as a rule, have a volume of 50 to 110 cm3, four-stroke, air-cooled, low-speed. Their power does not exceed 5 hp. And this is a big plus of mopeds, because at low revs, they are more powerful and economical. Agree, 2-3 liters per 100 km is very profitable!
The rubbing parts of the Alpha engine are located in an oil bath, which significantly increases their reliability and service life. And this is again a direct benefit!
The four-speed gearbox is another plus of the Chinese moped. Smooth acceleration reduces the load on the working parts of the engine and increases the comfort of riding a moped.
Large 17-inch wheels provide a fairly high ground clearance, which increases flotation. And greater stability is achieved by the wider rear wheel.
Alpha electronic ignition is perfectly adjusted at the factory and does not require additional adjustment. The moped is started with an electric starter, but there is also a kick starter for unforeseen situations.
Video (click to play).
The moped can easily withstand people of any build and build. And with its small size, it has a carrying capacity of 120 kilograms, which makes it a two-seater.
