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Tech data

Technical specifications: 1990 model

Engine : Watercooled, four valves, belt driven single
Bore * stroke : 98 * 74 mm
Capacity : 558 cc
Output : claimed 58 bhp at 8500
Compression : 1: 10.5
Power from : 5000 rpm upwards

Engine weight : 44 kg without carburetor
Carburation : 41.5 mm Dell'Orto without acceleration pump
Valves : 34/31mm (in/out)
Ignition : Nippon Denso CDI, rev limiter at 8800 rpm
Gearbox : Special 5 speed close ratio
Clutch : Multi plate oil bath

Chassis : Carpental (aircraft alloy) twin spar weight 8 kilo's
Suspension front: Marzocchi UPSD with 40mm stanchions
Suspension rear : Rising rate alloy swingwarm with Marzocchi unit
Head angle : 23.5 degrees
Wheelbase : 1340mm
Brakes front : 260mm full floating Brembo with four piston caliper
Brake rear : 210 Brembo disk with 2 piston Brembo caliper

Wheel front : 17 / 3.60 inch magnesium Marvic
Wheel rear : 17 / 4.50 inch magnesium Marvic
Weight : 118 kg dry
Weight distrib. : 53/47% (front/rear)

Top speed : 221 kph (Monza gearing)