"Blue-prints" of the MR-300.

Technical information (manufacturer's data):

  Engine - Mi 10
    300cc 2-cycle air-cooled 2-cylinder, rear mounted, on 3 rubber mounts.
    1 Bing 1/26 carburettor.
    Power: 14.8 bhp @ 5000 rpm.
    Compression: 6:1.
    Bore/stroke: 58/56 mm.
  Transmission -
    Clutch: 3-plate, wet.
    Speeds: 4 foreward, 1 reverse. Unsynchronized.
    Gear change: mechanical.
    Floor mounted shifter.
    Gear ratios:
      4th  1:5.07
      3rd  1:7.2
      2nd  1:11
      1st  1:20.6
      Reverse  1:18.05
  Body - 
    Steel, constructed as follows: stamped, heated, welded, and
      soldered into a whole.
    Paint: dry enamel, baked at a temperature of 120 C. 
    Glass: tempered, curved front and rear, flat at sides.
  Chassis -
    Steel.
    Semi-unitary construction: body bolted to floor plate.
    Mechanisms such as brakes, steering, and suspension are 
      attached to the floor plate.
    Suspension, front: struts, coil springs, and
                       bi-directional shock absorbers.
    Suspension, rear: swing axles, coil springs, and
                      bi-directional shock absorbers.
    Brakes: hydraulic, drums.
    Parking brake: mechanical, acting on rear wheels.
    Camber, front: 5 degrees.
    Camber, rear: 8 degrees.
    Steering mechanism: rod and nut.
    Steering ratio: 1:11.
  Interior -
    Seating, front: individual recling, movable seats.
    Seating, rear: bench seat.
  Fuel - 76 octane. Same oil as in transmission.
    Oil/gasoline ratio: 1:25
    Capacity: 25 litres.
    Consumption: 4.8 litres / 100 km.
  Electrical system -
    12 Volt.
    Battery: 12 V, 24 Ah.    
  Dimensions and weights -
    Wheelbase: 1850 mm.
    Length: 3000 mm.
    Width: 1310 mm.
    Height: 1330 mm.
    Track, average: 1100 mm.
    Ground clearence, sides: 210 mm.
    Ground clearence, front/rear: 170 mm.
    Tire size: 4.4 - 10", rim: 2.45 - 10".
    Brake drum diameter: 180 mm.
    Dry weight: 450 kg.
    Max. allowable weight: 690 kg.
  Performance -
    Maximum speed: 90 km/h.
    Turning circle diameter: 7.5 m.
    Grade climbing ability:
      4th gear - 7%
      3rd      - 12%
      2nd      - 20%
      1st      - 30%
      reverse  - 28%

Seating capacity: 2 adults + 2 children.
                                           
Interior:
  Recling seats at front, a bench at the rear.

Instruments and controls:
  Single-spoked steering wheel with horn at center, choke at left
of steering wheel, speedometer, turn signal light, fuel light, and
battery light are the ones which can be confirmed.

Click here to return to main Mikrus page