The third 588cc rotary engined Norton race bike, used for the factory teams final two seasons of 92 / 93.

The NRS588 replaced the still competitive RCW588 which had been used for the three preceding seasons.

NRS588 Technical Specification

Engine: Liquid pressure cooled twin-rotor rotary

Displacement: 588cc

Compression ratio: 9.2:1

Carburation: Twin flat slide downdraught

Ignition: Norton reluctor triggered capacitor discharge

Tachometer: Stack, 30 minute memory system

Gearbox: Norton six speed, constant mesh

Clutch: 18 plate "wet" clutch using sintered bronze friction plates and diaphragm spring

Power Output: More than 135 bhp at 9,800 rpm at shaft

Maximum torque: 78 lbs / ft at 8,000 rpm

Frame: Fabricated aluminium twin spar, designed by Ron Williams, fabricated by Harris Performance and assembled by JPS Norton Racing

Subframe: Composite saddle

Suspension: Front – White power upside down forks Rear – Multiple cantilever single shock

Brakes: Twin 310 mm front discs with four piston one piece Lockheed calipers.  Single 210 mm rear disc with twin piston Lockheed caliper

Wheels: 3.75 x 17 three-spoke magnesium PVM front wheel.  6.00 x 17 three-spoke magnesium rear wheel

Tyres: Michelin radials

Weight: Less than 135 kgs

nrs588-2 nrs-588-3