Classic Bikes Custom Bikes Individual Racing Bikes AJP AJS Aprilia Ariel Avinton / Wakan Bajaj Benelli Beta Bimota BMW Brough Superior BRP Cam-Am BSA Buell / EBR Bultaco Cagiva Campagna CCM CF Moto Combat Motors Derbi Deus Ducati Excelsior GASGAS Ghezzi Brian Gilera GIMA Harley Davidson Hero Highland Honda Horex Husaberg Husqvarna Hyosung Indian Jawa Kawasaki KTM KYMCO Laverda Lazareth Magni Maico Mash Matchless Mondial Moto Guzzi Moto Morini MV Agusta MZ / MuZ NCR Norton NSU Paton Peugeot Piaggio Revival Cycles Roland Sands Royal Enfield Sachs Sherco Sunbeam Suzuki SWM SYM Triumph TVS Ural Velocette Vespa Victory Vincent VOR Voxan Vyrus Walt Siegl Walz Wrenchmonkees Wunderlich XTR / Radical Yamaha Zero Video Technical
Complete Manufacturer List

Crighton CR700W Rotary

Make Model	Crighton CR700W
Engine	Four-stroke, twin chamber rotary (aluminium lock)
Capacity	690 cc / 42.1 cu in
Cooling System	Air cooled
Induction	Fuel injection
Ignition	Electric, bespoke high power DC brushless starter motor (option available)
Starting	Electric
Max Power	161.8kW / 220 hp @10 500 rpm
Max Torque	142.4 Nm / 105 ft/lbs @9500 rpm
Front Suspension	Öhlins or Bitubo Superbike spec
Rear Suspension	Öhlins or Bitubo special long-stroke unit
Front Brakes	Brembo Superbike monobloc spec calipers
Rear Brakes	Brembo Superbike monobloc spec calipers
Front Tyre	Michelin Superbike spec slicks
Rear Tyre	Michelin Superbike spec slicks
Dimensions	Length: 2040 mm / 80.3 in Width: 470 mm / 18.5 in Height: 1151 mm / 45.3 in
Wheelbase	1440 mm / 56.7 in (adjustable)
Seat Height	810 mm / 32 in
Dry Weight	129.5 kg / 285.5 lbs

Press release issued by Crighton Motorcycles:

Crighton Motorcycles and Rotron Power Ltd have revealed a new, ultra-exclusive CR700W, which houses one of the most powerful - relative to cubic capacity - normally aspirated engines ever created. Just 25 of the unique machines will be handbuilt by Brian Crighton, and entirely in the UK, and priced from £85,000.

Delivering 220hp at 10,500rpm from its fuel-injected, twin-rotor, 690cc engine, the CR700W produces 319hp per litre. By comparison, the most powerful normally aspirated Formula 1 engine - Ferrari’s F2004 - generates 309hp per litre at a frantic 18,500rpm, and the very latest MotoGP bikes deliver around 300hp per litre.

Generating 105ft/lbs of peak torque at 9,500rpm - more than Aprilia’s RSV4 or Suzuki’s Hayabusa - the CR700W’s rotary engine also delivers incredibly tractable and usable power, and is vibration-free thanks to precision balancing. It is completed by a spine-tingling exhaust note.

The CR700W boasts a power-to-weight ratio of 1.68hp per kg, greater than any superbike available, thanks to its feather-light 129.5kg dry weight. Put into context, the most powerful racing-spec superbikes deliver circa 1.5hp per kg while factory MotoGP machines deliver 1.65hp - 1.78hp per kg.

Agile handling comes from its exceptionally low centre of mass and ultra-light weight, with a chassis and monoshock swing arm fabricated from 7000 series aluminium alloy. Dymag carbon fibre wheels help reduce unsprung weight, while Brembo provide the stopping power. Customers can choose between Öhlins or Bitubo suspension.

Alex Head, CEO of Rotron Power Ltd says:
“The CR700W is a unique motorcycling masterpiece and a true woÖhlinsrk of art, born out of Brian’s passion and genius when it comes to creating extraordinary engines and race bikes. It is more powerful per cc than any other normally aspirated engine in the world, with a greater power-to-weight ratio than the Aprilia RSV4, or even the supercharged Kawasaki H2R.“The performance speaks for itself, yet despite the numbers it is far from a highly-stressed racing engine that needs rebuilding after every race weekend, and instead, thanks to its low-revving design, ultra-low friction materials and unique internal geometry, it is resoundingly robust and reliable, and will run a full season before requiring internal inspection. There are few machines as exclusive, with performance and uniqueness to match.”

Brian Crighton commented:
“In so many ways the CR700W is the culmination of my career’s achievements. Developed with my excellent lead engineer, Shamoon Qurashi, it encapsulates the absolute best of my engineering wisdom. And I believe the result is the ultimate track and racing motorcycle.”

Test rider and former British Superstock 600 champion, Mason Law, added:

“Riding the Crighton was a phenomenal experience. The raw speed of the motorcycle was mind-blowing. I felt like I was propelling down the runway of an aircraft carrier in an F-35 jet. This raw speed coupled with its lightweight means it has the power-to-weight ratio of a modern MotoGP bike with buckets of torque. It’s definitely smile-inducing.”