Something you need to know about the Crighton CR700W track machine

• As we all know, each and every motorbike today is either propelled with a help of IC engines or battery & motor. Now what makes this machine a unique one is the implementation of rotary or Wankel engine which is focused only for the track and also its limited edition.

Something you need to know about the Crighton CR700W track machine

• Back in the 90s and 80s, Brain Crighton went from racer to engineer who worked on Norton rotary engine based racing projects such as RCW588 and NRV588. Rotary motors have their own advantages as well as disadvantages that is wearing.

• He waited so that the manufacturing process and material science to catch up and his main motto is to develop a most effective and efficient rotary powered race machine. That's how the CR700W was born and its a extreme limited track machine with its lightweight and good handling characteristics.

Something you need to know about the Crighton CR700W track machine

• It just weighs about 129.5kg dry and it is mentioned that the bike has got a better power to weight ratio than a MotoGP machine. It is also mentioned that the bike has been developed since the year 2009. As far now, they've planned to build only 25 units as a trackday bike as its not legal for both road & race.

• The bike is powered by a 4 stroke, 690cc, twin rotor, twin spark, fuel injected motor spitting out 220hp & 142.36Nm at 10,500 & 9,500rpm respectively synced to a 6 speed gearbox with slipper clutch. The engine and transmission system only weighs about 46kg.

• Rotors uses a ultra low friction silicone nitride ceramic apex seals (just like the piston rings in the conventional reciprocating type IC engines). The engine is cooled via a internal cooling channel which passes through the main journal bearings and the combustion chamber.

Something you need to know about the Crighton CR700W track machine

• While researching about this track beaut, I came to know about the exhaust ejector system. The exhaust gas while making its way to the exhaust pipe, generates a high energy vacuum through the engine's core. This generated vacuum accelerates the air flow through the finned apex of each tip of the rotor. It is claimed by the manufacturer that this system requires zero moving parts, lightweight and extracts no energy from the engine drive shaft.

• Rotary motor is stuffed inside a conventional but compact and lightweight aluminum twin spar frame. It gets a choice of Ohlins or Biturbo suspension and braking duties are handled by top spec Brembo system. Rear monoshock is mounted offset and gets carbon Dymag wheels at both the ends. Fairings are made up of Carbon Fiber and it rolls with a help of Michelin rubbers.


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