Micromotorcycle. Drawing, description

PERSONAL TRANSPORT: GROUND, WATER, AIR
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Micromotorcycle. Personal transport

Personal transport: land, water, air

Directory / Personal transport: land, water, air

Before starting to build a micromotorcycle, I spent a long time drawing various options for its layout, trying to foresee on paper all the possible errors and miscalculations that might arise in the process of work. Looking ahead, it should be noted that development on paper is one thing, and production is quite another. Many "roughness" got out during the operation of the machine.

In the beginning, I thought of doing most of the parts myself, because I dreamed of a micro-motorcycle, unlike any of those published in the pages of technical magazines. But when such lovingly painted mudguards, a gas tank, a saddle were embodied in metal, leatherette and foam rubber, they lost all their attractiveness compared to the painted ones. Reluctantly, I had to use the parts available for sale. But, as it turned out, it benefited my car - it acquired a completely acceptable look.

As for the performance of the motorcycle and its reliability, I am quite satisfied with them, because I have already ridden about 3000 km on it without any breakdowns. The only drawback (but this is not my fault!) Is the scooter tires are rather weak. no matter what, but for the rear ... You have to put two pieces on the rim at once, but this does not help much either.

The maximum speed of the micromotorcycle is up to 50 km/h, it "holds" the road well and is quite stable. Dimensions allow you to freely place it in the trunk of "Moskvich". The weight of the micromotorcycle is so small that it can be brought to the fifth floor (without an elevator!) and placed almost anywhere in the apartment.

Rice. 1. General view of the micromotorcycle

Fig. 2. Frame

Rice. 3. Swingarm rear suspension

Well, now about the design of the machine. Frame configuration (fig. 2). predetermined the use of the D-6 engine. The pipes for it Ø 28 mm and Ø 14 mm are borrowed from an old bicycle frame. The rear pendulum suspension is welded from pipes Ø 21 mm. Front fork from moped "Riga". I only had to shorten it: I cut the feathers and rods by 130 mm, and welded brackets on the feathers from below (Fig. 5). The front wheel is from a children's scooter without alterations, the speedometer gearbox is adapted to it. The steering wheel from the motorcycle "Java". It houses the gas sector, clutch lever, standard rear wheel drum brake lever, headlight and horn switches.

The headlight, gas tank, saddle, signal, rear shock absorbers and muffler are standard, from the Verkhovyna moped. Mudguards from the same moped - I took the rear one and cut it in half. The branch pipe connecting the engine to the muffler is homemade, bent in place. The motorcycle stand is welded from an eight-millimeter steel bar and hinged to the frame.

Rice. 4. Stand

micromotorcycle
Rice. 5. Staple

Rice. 6. Driven sprocket

micromotorcycle
Rice. 7. Rear wheel

One of the most complex parts of a micromotorcycle is the rear wheel. It had to be machined from duralumin, since the main load falls on it. The hub and the rim are made at the same time, inside the first there are two bearings. The driven sprocket (Z=28) is welded to the steel flange. The brake drum is located on the right.

The tire on the rear wheel is double, glued together with scooter adhesive "88".

Author: V.Berezhnoy

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