Honda Smart Dio AF-56/57 scooter review

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Honda Smart Dio AF-56/57 scooter review

Due to changes in environmental policy, auto and motorcycle manufacturers in recent years have been forced to switch to new technologies that reduce the emission of harmful substances into the atmosphere. These requirements also affected Honda, as a result of which in 2001 a completely new line of Smart Dio AF-56/57 scooters with a four-stroke AF55E engine appeared. Of course, the transition to a new type of engine led to a decrease in power, but at the same time its efficiency increased significantly.

The new four-stroke engine is heavier than the previous two-stroke, so to maintain dynamics it was necessary to reduce the weight of the frame, which is now made of aluminum rather than steel. This also gave other positive aspects: the strength of the frame increased and resistance to corrosion appeared.


Specifications

Engine: Engine type – AF55E, displacement 49 cc. see Number of cylinders – 1. Number of strokes – 4. Cooling system – liquid cooling. Maximum engine power – 5.0 hp. at 8000 rpm. Torque – 0.47 kg*m / 7000 rpm. Compression ratio – 12.0. Transmission – variator. Ignition - dynastarter. The tire size of the front and rear wheels is 90-10 50J. Oil tank volume – 0.8 l. Gas tank volume – 4.8 liters. Maximum speed – 60 km/h. Chassis: Front wheel suspension type – telescopic. The rear wheel suspension type is pendulum. Front wheel brake type – drum/disc (AF-56/57). The rear wheel brake type is drum. Size and weight: Base – 1190 mm. Length – 1710 mm. Seat height – 710 mm. Ground clearance – 115 mm. Total weight – 72 kg.


Features and Benefits

So, the Smart Dio AF-56/57 models opened a new direction for Honda scooters, from now on they began to be produced with a 4-stroke engine with a liquid cooling system. It should be noted that the power of the 50 cc engine did not drop much (5 hp), so the scooter did not lose much in dynamics. But Smart Dio has become one and a half times more economical, consuming approximately 1.3 liters of gasoline per 100 km (of course, under ideal conditions: without a passenger and at a speed of 30 km/h), and up to 2 liters at full throttle. The noise level produced by the scooter's engine has also decreased.

At the same time, the reliability of the Smart Dio engine has increased, and there is nothing unusual about this - after all, the loads have decreased along with the power, and the separate lubrication system works more efficiently than the fuel-oil mixture. Now, mileage of hundreds of thousands of kilometers is no longer surprising. Engine maintenance is very simple: you just need to change the oil and filter in a timely manner. But the scooter has ceased to be omnivorous; from now on it needs to be filled with AI-95 gasoline.

To reduce weight, a durable aluminum frame is now used, which is more rigid in bending and torsion and is completely resistant to corrosion. It also became lighter, saving 7 kg of weight.

As for the rest, we have before us the good old Dio, a friend of asphalt roads, a wonderful, nimble vehicle for the city. The scooter is designed for one person, but is quite capable of carrying two. Structurally, everything remains the same: the luggage compartment and the steering column pocket for small items. The gas tank also did not move anywhere, remaining in the underground space, so the cargo capacity was not affected in any way. The appearance of the scooter has not undergone any significant changes compared to the previous generation, although not only the front, but also the rear optics have become crystal.

Within the same line, Honda scooters usually differ in their braking system. There are no exceptions here either, the AF-56 model has a front drum brake, and the AF-57 DX has a disc brake. The Combi Brake System is now an indispensable attribute of the scooter.

Despite the fact that Smart Dio is not as widespread as scooters of the previous generation, it is unlikely that their owners will have problems with repairs and spare parts, because the necessary consumables are always on sale, and the highly reliable engine will not require major repairs for a very long time.

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Honda Dio SR AF25

This model has a brother, the Honda Dio AF25 SR - it differs from the 18 in the presence of a front disc brake. In principle, for Dio’s speeds, a drum brake is quite enough for high braking efficiency.

Pros:

  • simplicity of design,
  • high maintainability,
  • good supply of spare parts,
  • high reliability,
  • the ability to travel together for short distances.

Minuses:

  • the suspension is conditionally suitable for suburban use due to its small stroke and design,
  • outdated design.

Honda Dio ZX AF35

Honda Dio AF35 ZX is one of the most loved mopeds by young people due to its sporty nature and appearance. The above classification applies to it.

I recommend choosing the later versions with a hydraulic front wheel fork - it provides incomparable comfort compared to the conventional telescopic spring fork that was installed on the Honda Dio AF35 (1994-1996 onwards). The weak point, like any hydraulics, is the oil seals (available in our online store). Honda Dio AF35ZX will take root well both in the city and on a country road (options with front hydraulics).

In general, all Honda models tolerate suburban use well due to their design features. Thanks to the protection, it is almost impossible to tear off and jam the muffler - the moped is hit by the bottom protection or the protrusion of the step. The air intake is located quite high and ensures high tightness; it is important not to forget to clean the air filter in a timely manner. The only thing I recommend is the installation of reinforced rear shock absorbers, they will increase the ground clearance and allow two people to ride. Any Honda will be your faithful assistant in your business and entertainment.

Honda Dio AF18

Honda Dio AF18 is the simplest and most economical scooter.
Despite its unprepossessing appearance, it still enjoys well-deserved popularity, although it is already at least 15-20 years old. The secret of its popularity is its phenomenal endurance, unpretentiousness, and ease of maintenance. The scooter is equipped with a telescopic fork, which is suitable exclusively for urban use, as it is not able to provide a sufficient level of comfort on country roads. The scooter is conventionally a two-seater and is more likely to be suitable for two children or one adult and no more than 175 in height - it will be a bit cramped for two adults.

The controls are made according to the classical design. Everything is convenient and at hand, there is even a light switch button. On the move, it’s quite a high-spirited vehicle, traveling at 60-65 km/h. Maneuverability is at an average level, the suspension in the city is able to provide a minimum level of comfort. The trunk allows the installation of an additional trunk; it is also possible to install a basket in front. The scooter has won a lot of fans due to its low price and high consumer qualities. After purchase, we recommend installing a reinforced rear shock absorber; it will increase ground clearance and make travel more comfortable.

Honda Dio AF27 modifications:

  • Honda Dio AF27 SR (distinguished by the presence of a disc brake and a different range of colors),
  • Honda Dio AF28 (distinguished by the presence of a disc brake and an LED brake light, instead of a trunk).

Let's take a closer look at the Honda Dio AF28 ZX. The model is quite successful, the main thing is to choose an unkilled copy, since in Japan, as well as in Russia, young people ride them. Honda Dio AF28 has a limiter in the switch, it can be easily removed by installing a new unit (which costs 800 rubles in our online store), after installation the speed will be about 70, the main thing when buying is to pay attention to the performance of the front fork, the original switch unit - beware of mopeds with tuning from Japan, as a rule, their resource is extremely small.

Pros:

  • high reliability and unpretentiousness,
  • good maneuverability and handling for city driving,
  • ease of repair,
  • availability of spare parts,
  • quite modern design,
  • Possibility for two adults to travel short distances.

Minuses:

  • inability to drive over rough terrain due to imperfect suspension design.

Honda Dio Z4

Honda Dio Z4 - a continuation of the Honda Dio Smart AF56 series, is very similar to its cheaper brother. It features a full hydraulic fork, a disc brake, a spoiler and cast aluminum wheels. The engine is tuned for more dynamic driving than the usual DIO AF56, the power supply system is injector, equipped with an Idle-stop system: when idling for more than 30 seconds, the engine is turned off and started by turning the throttle. The scooter is equipped with an anti-theft system - blocking the footrest in the seat tank. In terms of handling, smoothness, and ergonomics, just like the Honda Dio Smart AF56, the Honda Z4 is beyond any praise; it will appeal to young people for its stylish, aggressive design.

Pros:

  • efficiency,
  • ergonomics,
  • powerful lighting technology,
  • almost silent,
  • possibility of use in any area,
  • conditionally double (suitable for short trips for two).

Honda Dio AF27

Honda Dio AF27 is the most common and beloved scooter among the people. It has a fairly modern design, was produced from 1991 to 1999, which indicates that Japanese consumers also appreciated its advantages (as a rule, scooters are produced for 4 years, then another model replaces it, and this model was produced in parallel with the next AF34-35) .

Structurally, the scooter repeats the first sign in the DIO AF18 family, the same suspension, the same brakes - the simplicity of the design and high reliability is the success of this series. The underseat space has been increased compared to the Dio AF18 due to the battery being moved to the rear of the scooter. The lighting optics have been changed.

The engine was installed in two types; in principle, apart from the crankshaft, they are no different. In the city, the Honda Dio AF27 will show good handling and a very smooth ride. The maximum speed is usually 60-65 km/h; on very lively specimens it can be 70. It is quite suitable for short trips around the city, to the store, to the garage, to work, and due to the larger seating than the previous model, two adults can fit on it (for driving together I recommend installing a reinforced shock absorber), it will not cause any difficulties with storage. Due to its low weight of 65 kg, dragging it onto, say, a balcony is no problem.

Honda Dio Smart

Honda Dio Smart is a very economical, low-noise scooter. A 4-stroke liquid cooling system is installed in the cast aluminum frame. The dynamics, contrary to popular belief, are quite decent and you feel quite confident in city traffic. Handling, ergonomics, cornering are beyond praise - Honda engineers did their best, it is a benchmark for this class of scooters.

The light optics are powerful - the head light is 40 watts, the headlight is almost like a car's. The seat allows two adults of average build to ride. Fuel consumption when driving at full throttle is 2 liters per hundred. Equipped with a dynostarter – i.e. The moped does not have a starter as such - it starts itself with a generator, so the starting process is absolutely silent (another reason to surprise your friends). Honda Dio Smart AF 56 is equipped with a combi-brake system (part of the force from the rear brake is transferred to the front).

There is a modification of the Honda Dio AF57 - this is the same 56 only with a disc brake. From my point of view, it’s an almost ideal scooter for city driving, someone will echo - it doesn’t ride, I’ll object: when installing a tuning variator (available in the online store). Honda Dio Smart AF56 travels at 80 km/h, which is quite enough for driving around the city and on country roads.

It is simple and economical to maintain - it requires periodic engine oil changes, I recommend Castrol semi-synthetics for 4-stroke Castrol X-tra Scooter scooters, and replacing the filter cassette is disposable, like on cars (available in our online store).

There is an opinion that there are difficulties with spare parts for this scooter. Don't let this scare you. Firstly, if purchased correctly, it will last a very long time. Secondly, we have most of the original and non-original spare parts in our online store, everything else is delivered to order within 2-3 weeks.

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