Norton NRV588 Rotary Racer

This machine was prototyped in 2006 by Brian Crighton and is directly evolved from the racer he designed for the 1995 season. Featured in Motor Cycle News 10 March 1994, it was a projected onward development of the Duckhams Nortons which stormed UK circuits in 1994, when Ian Simpson won the British Supercup championship and team-mate Phil Borley was third.

Outstanding features of Crighton's latest racer are numerous computer-controlled functions and the retention of the 1994 twin-shock chassis layout, but with a single shock absorber on one side, taking advantage of the SPONDON swingarm's extreme rigidity. Many features on this machine are in common use on racetracks today, showing how far ahead of its time the NRV-588 was when first conceived more than 10 years ago.

General Specification

This NRV-588 has an advanced, up-to-date technical specification using computers to control all operations, but the general configuration is as follows:

Engine

• 588cc twin-rotor Wankel type
• Fuel injected, direct spray into both bell mouths
• Fully variable intake tract to peak maximum torque between 8000-11,000rpm
• Electric water pump
• Ducted fan air cooling for rotors
• Fly-by-wire throttle

Power

• Projected at 170 BHP @ 11,500 RPM
• Max torque 80 Ibs ft, at variable rpm

Chassis

Twin spar aluminium, by Spondon

Front Suspension

Ohlins upside-down fork

Rear Suspension

Ohlins specially made long-stroke single-sided direct connection unit

Brakes

AP Discs with radial mounted front callipers and rear 2 piston brake calliper.

Wheels

Dymag 16.5in

Tyres

Dunlop

Weight

130kg (dry)

Alan Cathcart rides the Norton NRV588 at Mallory Park

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