Dutch wooden bike runs on algae oil combustion

Internal combustion engines not dead yet

Despite the coming era of electric motorcycles, there is still plenty of life left in the internal combustion engine. KTM has just released two enduro bikes with direct-injection two-stroke engines, two Dutch designers have built a wooden bike (pictured top) that runs on algae oil and a South American has invented a bike that runs …

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2 stroke CITS engine

Aussie two-stroke engine invention

A Sydney engineering company has developed a new two-stroke engine that they believe could be used in motorcycles. It’s called Crankcase Independent Two-Stroke (CITS) and was invented by former South African motorsport engineer Basil van Rooyen, Director of CITS Engineering, St Ives. He says advantages over four-stroke are that the CITS engine is more powerful, …

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Suter MMX 500 two-stroke

Two-stroke engines making comeback

Two-stroke engines were phased out by tough pollution laws and fuel economy targets, but they could be making a comeback with KTM, Honda and boutique builders. KTM and Honda have both registered patents for direct-injection two-stroke engines. In 2015, Honda filed a patent for a new two-stroke motor using direct fuel injection for a cleaner burn and …

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Suter MMX 500 two-stroke

Two-stroke race bikes for super-rich

It seems there is a lucrative market in making limited-edition GP race bikes for super-rich clients, with two European companies making two-stroke racers. While Honda has produced the quarter-million-dollar, road-legal, four-stroke RC213V-S MotoGP replica, German company Ronax and Switzerland ‘s Suter Racing have gone down the retro two-stroke road. The Ronax 500 is powered by …

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Toyota Prius hybrid and 2-stroke and hybrid motorcycle patents

Two-stroke and hybrid engines planned

Tougher emissions laws are forcing motorcycle companies to rethink the future of the bike with Honda considering a return to two-stroke and Suzuki looking at hybrids like the Toyota Prius. Honda has resurrected hopes of a return to lightweight two-stroke bikes by filing a patent for a new two stroke motor using direct fuel injection …

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Ronax 500 two-stroke superbike

Two-stroke road-legal superbike

  Just when you thought two-stroke was dead, German company Ronax has produced a 500cc two-stroke machine that is road legal but wouldn’t be out-gunned on the MotoGP grid. SEE ALL THE PHOTOS HERE The Ronax 500 is powered by a fuel-injected 500cc two-stroke V4 with 119kW at 11,500rpm. Yet it weighs only 145kg (dry) …

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Bultaco Rapitan prototpye electric motorcycle

Bultaco motorycles return to production

Spanish motorcycle manufacturer Bultaco is back, but not as you would expect. Instead of two-stroke off-road bikes for which they were famous, Bultaco will initially produce electric road motorcycles developed with the help of a train specialist. The first will be various versions of an electric Light Bike, followed by the Electrical Urbanmotard based on …

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