SR 50 R

Technical sheet

• Engine: Liquid cooled horizontal single cylinder two stroke

• Bore x Stroke: 40 x 39,3 mm

• Total displacement: 49 cc

• Compression ratio: 12,1:1

• Ignition: CDI - capacitor discharge ignition

• Starting: Electric

• Generator: Flywheel-magneto, 70 W – 12 V

• Lubrification: Separate mixing with mechanical oil pump

• Gear box: Continuous automatic variator

• Clutch: Automatic centrifugal dry clutch

• Primary drive: V belt

• Final drive: Gears in oil bath

• Frame: Split single cradle frame in high tensile strength steel tube

• Front suspension: Hydraulic fork, 90 mm wheel travel

• Rear suspension: Engine unit acting as swingarm; frame linkages on two radial silent block mountings; wheel travel 70 mm

• Brakes: Front: 190 mm stainless steel disc; racing caliper with twin opposed 32 mm pistons. Rear: 190 mm stainless steel disc; racing caliper with twin opposed 30 mm pistons

• Wheels: Five spoke, light alloy wheels front and rear: 3.50 x 13"

• Tyres: Tubeless. Front and rear: 130/60 x 13”

• Dimensions: Overall length: 1860 mm Overall width: 705 mm Overall height: 1120 mm Seat height: 820 mm Wheelbase: 1290 mm

• Fuel tank capacity: 7 litres

• Carburettor: Dell’Orto PHVA 17.5

• Intake: Reed valve