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Bimota DB4 front.jpg
Bimota DB4
Bimota DB4 lhs rear.jpg
Bimota DB4
Bimota DB4.jpg
Bimota DB4
ENGINE  
Stroke 4
Cylinders 2
Geometry V 90°
Valves per cylinder 2
Cooling air
Bore x stroke 92 x 68 mm
Piston displacement 904 cc
Compression ratio 9.21
Fuelling 2 x ø38 carburetors
Lubrication wet sump with oil cooler
ELECTRICS  
Ignition electronic with inductive discharge
Battery  12V, 16 Ah
Starting electric
TRANSMISSION  
Primary drive gear
Ratio 31:62
Clutch dry multi-disc
Gearbox 6 speed
Ratios from first gear 15:37, 17:30, 20:27, 22:24, 24:23, 28:24
Final drive chain
Ratio 15:38
CHASSIS  
Frame light aluminium alloy pipes of oval cross-section
Wheelbase 1370 mm
Steering angle 23°
Trail 91 mm
Front suspension telescopic fork with 43 mm stanchions and rebound, compression and pre-load adjustments
Rear suspension single shock absorber with compression, rebound, pre-load and length adjustments
Wheel travel 120 mm front - 102 mm rear
Front brake double ø320 mm disc
Rear brake single ø230 mm disc
Rims 3.50x17 front - 5.50x17 rear
Front tyre 120/70 ZR 17
Rear tyre 180/55 ZR 17
DIMENSIONS  
Max length 2000 mm
Max height 1155 mm
Max width 805 mm
Seat height 800 mm
Dry weight 165 kg
Fuel tank capacity 20 litres

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