MAICO Pictures 1980
1980 MAICO 440 MEGA. Technical specifications at the bottom of page
The most innovative and competitive open class bike back in 1980. New frame with the rigid box backbone structure, brand new ø42mm super rigid air assisted fork with 12.2 inches (310mm) travel. New plastic tank, aluminium hubs and 12.2 inches (310mm) of rear Corte Cosso suspension. The magnificent flat engine with the chain primary drive. Direct piston controlled ports and a forged Mahle piston that lasts forever.
The rear end. Ultra strong chromolly swingarm, twin shocks with a separate reservoir and a huge 310mm travel. Noticeable is that bikes never gotten longer suspension travel than this. It was the ultimate spot on.
The engine and pipe. Note the huge bing carb and no reed valves to stop the flow. The 440cc engine delivered some 50HP at 7200rpm. Only slightly beaten by the Yamaha YZ465. The ultra tractable powerband in combination with the sharp steering made MAICO the best.
The MAICO 250. All specs equals the 400 and 440 except the engine size and power output.
| Technical specifications | MAICO 250cc | MAICO 400cc | MAICO 440cc |
| Engine: |
2-stroke
single cylinder piston port air cooled
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| Displacement: | 247cc | 386cc | 438cc |
| Bore/Stroke: | 67 x 70mm | 77 x 83mm | 82 x 83mm |
| Compression ratio: |
12:1
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| Piston: |
ø82mm,
ø82.22mm, ø82.52mm, ø82.82mm forged single ring Mahle
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| Carburetor: |
Bing
V54/II ø 40mm
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| Horespower: | 40HP / 7800RPM (DIN) | 47HP / 7000RPM (DIN) | 50HP / 7200RPM (DIN) |
| Clutch: |
Wet multi disk, 6 sintered and 6 steel plates (12), spring washers
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| Primary drive: | Duplex chain 2.28 |
Triplex
chain 1.86
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| Transmission: |
5
speed
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| Gear ratio: | 2.25/1.80/1.44/1.20/1.00 |
2.71/1.97/1.50/1.20/1.00
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| Air filter: |
Foam
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| Ignition: |
Motoplat
electronic
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| Lubrication: |
pre-mix
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| Frame: |
Double
loop, backbone box chrome moly steel
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| Fork: |
ø42mm
Hydraulic
air assisted conventional fork. 12.2" (310mm) travel
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| Fork oil: |
570cc,
5w hydraulic oil
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| Rear suspension: |
Steel
swingarm on needle bearings. Corte Cosso reservoir shocks. 12.2"
(310mm)
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| Front brake: |
Drum
brake, ø5.3" (135mm)
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| Rear brake: |
Drum
brake, ø6.2" (158mm)
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| Wheelbase: |
57.7"
( 1465mm)
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| Ground clearance: |
14.2"
(361mm)
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| Seat height: |
37.8"
(960mm)
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| Dry weight: | 218Ibs (99Kg) | 222Ibs (101Kg) | 224Ibs (102Kg) |