Bicycle with a motor. Drawing, description

PERSONAL TRANSPORT: GROUND, WATER, AIR
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Bicycle with a motor. Personal transport

Personal transport: land, water, air

Directory / Personal transport: land, water, air

For my moped, I chose the Desna-2 folding bike model B-849 with reduced wheels (20 x 175). To install a motor on it, I made some improvements.

Rice. 1. Bicycle "Desna" with a motor (click to enlarge): 1 - spinal beam of the frame. 2 - shock absorber struts 3 - shock absorber clamp. 4 - headlight. 5 - toggle switch, c - frame reinforcement tube, 7 - engine. 8 - seatpost frame. 9 - trunk. 10 - gas tank, 11 - extended trunk racks, 12 - sprocket, 13 - chain tension sprocket. 14 - engine mounting clamp. 15 - auxiliary tube-bracket of the engine

He strengthened the frame: he welded an L-shaped tube between the steering column and the center beam. The front fork had to be sprung with two springs to remove or soften the bumps from the bumps in the road. On the rear wheel hub, I installed an additional sprocket from a 16MV motorbike on the left side.

Bicycle with a motor
Rice. 2. Frame reinforcement: 1 - steering column, 2 - reinforcement tube. 3 - spinal beam of the frame

He changed and strengthened the rear trunk, retaining its functions and somewhat expanding them: he attached a gas tank under it, from which fuel flows by gravity through the gas pipeline to the K34B carburetor.

Rice. 3. Front wheel shock absorber (click to enlarge): 1 - strut, 2 - spring 3 - adjusting nut. 4 - clamp. 5 - steering rack

The D-6 engine is mounted with auxiliary tubes and clamps on the center beam and seat post. To stop the engine on the move, there is a toggle switch on the right handlebar that breaks the primary circuit of the engine magneto. To ensure the safety of movement at night, the bike is equipped with a front headlight (with low and high beams) and a red brake light at the rear.

Bicycle with a motor
Rice. 4. Engine mount: 1 - seatpost of the frame 2 - spinal beam of the frame. 3 - clamp 4 - muffler bracket, 5 - tubes (engine bracket). 6 - clamp, 7 - tension sprocket bracket, 8 - tension sprocket

The weight of the folding moped turned out to be about 30 kgf, it can be lifted and carried when folded. For ease of storage, I made a wooden stand-cart on wheels. The car needs a little space - 100 x 50 cm.

Bicycle with a motor
Rice. 5. Gas tank installation: 1 - rear fork, 2 - extended trunk rack, 3 - gas tank brackets, 4 - trunk, 5 - gas tank

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