MOPED AT ANY AGE

A BIKE FOR ANY AGEConceiving the design of the moped, I set a goal to make it easy to operate for the driver any age. This moped I have and get: easy to control on the road and on the dirt road, with adjustable height of driver steering and saddle, stable and powerful at the expense of front-wheel drive with unpretentious D-6 engine. On the latter suffice it to say that it starts as a scooter with a push.

Since a moped is designed for use mainly on rural roads, its front wheel is made not only leading, but also wide. I used the rim from mini-mokiki (without brake drum), putting him on a wider tire — scooter Tulitsa (with dimensions of 4.00—10″).

In the wheel hub on the side I drilled four holes for the bolts securing the driven sprocket (z = 41,1 t = 12,7), a removed rear wheel to outdated moped brand ZIF. (I note parenthetically that the increasing speed at a constant drive on the asphalt on the driving wheel to put the sprocket with fewer teeth.)

Then took over the manufacture of the motor frame, articulated in my design with the front fork (for the sake of brevity I would call this combination “motor frame front fork”). Since the combination bears quite a lot of loaded assemblies, I made it from durable water pipes.

The engine frame is a simple piece of pipe with a diameter of 27 mm, one end of which preparine fork mounting front damper (shock absorber — from scooter “Vyatka”), and the second end of the curved radius for easy location of the engine. On this same pipe, between the engine and the plug is attached to the ignition coil.

 

The layout of the all-age moped

The layout of sevastia of a moped (engine D-6 ignition coil and drive circuit for shown):

1 —steering wheel grip throttle, clutch lever, buttons, lights and ignition (from the moped “Verhovina”); 2— fuel tank (from a chainsaw “Friendship”); 3— a headlight (2); 4 — rear shock absorber (scooter “Vyatka”); 5— combination “motor frame front fork”; 6 — the front wheel (the rim without a brake drum from mini-mokik; tire of 4.00—10″ — scooter “True”); 7 — guiding star (from the moped ZIF; z = 41,1 t— 12,7); 8 — steering column (from the moped “Verhovina”); 9— frame; 10 — front fender with splash guard (steel, sheet s1; rubber, sheet s3); 11 —brake pedal; 12 — saddle holder (moped ZIF); 13 — rear shock (from scooter “Vyatka”); 14 — rear fork (from the moped “Verhovina”, cropped); 15—rear wheel with brake drum (from a mini-mo-Kika); 16 — rear wing (from mini-mokik); 17 — a back lantern; 18 — the holder of the rear wing

Feathers front fork — cuts steel pipes with a diameter of 21 mm and a motor frame they are connected by four curved struts of lengths of pipe with a diameter of 16 mm. unlike the right pen, the left is not concerned with the motor frame, as it is a bit cropped in the front, so as not to interfere with the operation of the drive circuit.

To the bottom of the feathers the tips are welded from steel sheet 4 mm thick for mounting the wheel. The rear ends of the feathers rasklapanje and reamed to the diameter of the bolts pivotally connecting the combination of “motor frame front fork” with the steering column. More precisely, with its horizontal part, which used the hinge sleeve rear fork moped “Verhovina”.

The steering column is also from the “Verkhovyna”. On top of it is the extended section of pipe with a diameter of 21 mm, which is basically a plug for the upper end of the front shock absorber and mounting brackets fuel tank (from a saw “Friendship”) and steering (from “Verkhovyna”) welded after Assembly of the column. Handlebar — grip throttle, clutch lever, buttons, lights and plugs.

 

Main frame

Main frame:

1 — the front bushing (steel, pipe 34×2); 2— steering rack (steel, pipe 40x28x2,5); 3 — trim of the platform (steel, strip 20×3); 4 — spar (steel, angle 25x25x4); 5 — mesh platform (steel, wire d5); 6 — rear hub (steel, pipe 36×11); 7th — finger of the shock absorber (bolt M12); 8 — backup (steel, sheet s4); 9 — seatpost rack (steel, pipe 40x28x2,5); 10 — socket sudaderas
 

Rear fork (improvised version)

Rear fork (homemade version):

1 — pen (steel, pipe 27×2,5,2); 2 — bridge (steel, pipe 27×2,5); 3 — hinge wing mounting (steel, strip 20×4); 4— eyelet of the shock absorber (steel, strip 36×4)

 

Main frame assembled from several components. The power part consists of its steering and the seat pillars, side members, front and rear bushings.

 

The rack is carved from a steel pipe of rectangular cross section and are interconnected by spars — steel corners 25×25 mm. are welded thereto bushing: front via adapter (length of the same rectangular tube) to the steering rack, rear — directly to the spars.

Both bushings machined from lengths of steel pipe. The inner diameter of the front is designed into the steering column with nylon or Teflon bushings-bearings, and the inner diameter of the rear — pin, which serves as the axis of swing of rear fork.

In addition, the seatpost rack has a socket with a tightening screw M10 for fixation of sudaderas at a given height and finger attachment of the upper end of rear shock (he, like front shock absorber, scooter “Vyatka”).

Between the uprights of the power unit main frame is a platform for feet of the driver. The platform is made in the form of a grid of interlaced right-angle rods—lengths of wire with a diameter of 5 mm and is edged with two steel strips welded to the rods and racks.

 

Combination

A combination of “motor frame front fork”:

1.7— feathers of the front fork (steel, pipe 21×2,5); 2,3,5,6 — bent struts (steel, pipe 16×1); 4 — motor frame (steel, pipe 27×2,5); 8 — fork shock absorber (steel, sheet 30×3); 9— the tip (steel, sheet s4, 2 PCs.)
 

Steering column (improvised version)

Steering column (homemade version):

1 — column (steel, pipe 21×2,5); 2 — extension tube (steel tube 26×2,5); 3 — bushing (steel, pipe 20×3)

 

The brake pedal (spring and cables not shown)

The brake pedal (spring and cables not shown):

1 —main frame of the moped; 2—pedal (from scooter “Vyatka”); 3 — axis swing pedals (bolt M8)

 

Right front on the platform of the pedal is associated with a cable drive with the pads of the brake drum on the rear wheel. The latter, unlike the front wheel has a different tire size of 3.00—10″.

Rear fork of a moped — from “Verkhovyna”. Shortened plug under the wheel of a mini-mokik and to her right Peru is welded eyelet for fastening the lower end of the rear shock absorber.

 

The saddle (from the old moped brand ZIF) — height adjustable: holder can be easily moved along the seat stand in the nest and fixed by the screw at a predetermined position.

Noteworthy is the fact that my moped, not a trunk. The fact that it is simply not necessary: the size of the platform is quite enough for the legs of the driver and small goods. Moreover, the additional mass on the platform does not affect the stability and handling of a motorbike as it is quite close to its center of gravity.

S. LUSTE, Kirov region.

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