At the age of 12 Bruno Rossati began working eleven hour days.
"Now, approaching 91, I find myself reminiscing about my youth, still riding my motorcycle every day.
Letter re Ladetto
Specifications:
ENGINE: Single-cylinder four-stroke with light alloy cylinder. Liquid cooling with three way pressurised circuit. Single overhead cam with chain timing drive; four valves. Anti-vibration balancer shaft. Fuel: unleaded fuel bore and stroke: 100 x 84 mm. Total displacement: 660 cc. Compression ratio: 10:1. Max. Power at crankshaft: 48 hp (35 kw) at 6,000 rpm. Max. Torque at crankshaft: 6.01 kgm (59 nm) at 5,000 rpm.
Fuel system: Integrated electronic engine management system. Electronic fuel injection. 44 Mm throttle body.
Ignition: electronic. Starting: electric starter. Alternator: 290 w lubrication: dry sump with oil pump.
Gearbox: 5 speed. Transmission ratios: 1st 12/30 2nd 16/26 3rd 20/23 4th 22/20 sth 26/20 clutch: multi-plate in oil bath. Cable operated. Primary drive: spur gears. Transmission ratio: 36/75. Final drive: chain. Transmission ratio: 15/44.
Frame: steel, open cradle, single spar frame. Front suspension: Ø 45 mm fork. Wheel travel 170 mm. Rear suspension: high strength steel swingarm. Aprilia progressive system (aps) rising rate linkages. Sachs hydraulic monoshock with adjustable rebound and preload. Wheel travel 170 mm.
Brakes: front: brembo stainless steel disc, Ø 300 mm. Two-piston floating caliper. Rear: stainless steel disc, Ø 240 mm. Floating caliper.
Wheels: Aluminium spoked, front: 2.15 x 19", rear: 3.00 x 17".
Tyres: front: 100/90-19, rear: 130/80-17.
Dimensions: Overall length: 2,160 mm, overall width: 810 mm, ground
clearance: 270 mm, seat height: 820 mm.
Wheelbase: 1,479 mm
Tank capacity: 16 litres (3.5 litre reserve).
Dry weight: 174 kg.
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