Electric Motorcycles
September 23, 2006 The recreational vehicle industry and specifically trail bikes look to be set for a whole new range of possibilities in the near future as electric motorcycles become viable. Electric dirt bikes offer several compelling advantages over their current petrol-burning brethren, the most significant being they are completely silent. There is nothing more out of place in the forest than the bark of a four-stroke or the staccato rasp of a two-stroke – at complete odds with the tranquility of the wilderness and quite capable of spoiling the experience for those ten miles away, motorcycling without the noise is long overdue. For this reason, bikes are essentially banned from suburbia. Proof of just how far electric dirt bikes have come is the US$5,500 Drift XC bike from Electricross. Though it only develops 19 bhp, the linear, predictable power delivery has broad torque available from the very bottom of the rev range and is absolutely ideal power for loose surfaces. The trick is in the weight though as the Neal Saiki designed bike is ultra light – just 140 pounds ready for riding compared to 240 pounds plus for a petrol engined bike of similar output. There is no wet weight for an electric bike as there’s no petrol to burn, engine oil or even a gearbox. Saiki’s cross country bike designs have won numerous World Cup mountain bike titles and he recently landed Mountain Biking magazine’s 2006 X-Country Bike of the Year, so he knows his stuff . Before bikes he designed the first successful human powered helicopter (pictured), claiming one of the plumb aviation design firsts in history. Inspired by the potential of the electric motor, Saiki has spent the last couple of years designing and building an electric cross country bike. Saiki found that motorcycle parts are generally too heavy (without the vibration, an electric bike can be built lighter) and bicycle parts were too weak for the forces he wanted to direct. The frame parts are all made from American-produced aluminum. Accordingly, every part had to be uniquely developed using computer analysis to optimize every component, such as the patent pending double diamond design that is lighter and stiffer than conventional swingarms. Read More
Yamaha unveils hybrid electric motorcycle and limousine scooter
October 28, 2005 UPDATED IMAGES Yamaha revealed a hybrid motorcycle concept at the Tokyo Show which is quite unlike any form of two wheeler seen to date. The motorcycle, to be known as the Gen-Ryu, uses the high output lightweight compact YZF-R6 600cc motor and an electric motor to deliver the type of performance normally associated with a much larger capacity engine, and is packaged as a futuristic cruiser with advanced aerodynamics and some form of noise cancelling in the cockpit area to enable voice activation of the navigation system, mobile telephone, intercom communications with the pillion and other similarly equipped riders plus a dazzling array of advanced technologies such as headlights which turn to the inside of the corner and rear cameras playing through LCD screens in the dashboard. The Gen-Ryu will be joined on the Yamaha stand by the previously reported and equally radical stretching and shrinking DEINONYCHUS and the limousine-styled Maxam scooter. With massive overhangs, plush white leather upholstery and long, feet-first styling, the Maxam is the most distinctive two wheeler we’ve ever seen. Read More
October 28, 2005 UPDATED IMAGES For the last 125 years, motorcycles have been made up of two wheels and a motor, and they have all been arranged as a wheel, a motor and another wheel – in that order – all of them. But the freedom afforded to designers by the in-wheel electric motors which technology has recently spawned will make for some interesting changes over the coming years and Yamaha is the first of the motorcycle manufacturers to seriously look at alternatives available in the next generation of motorcycles. The Deinonychus prototype takes full advantage of the greater chassis design freedom afforded by an in-wheel motor, and offers a completely new type of two-wheel-drive (2WD) EV (electric vehicle) with "Stretch & Shrink" functions in the vertical and horizontal directions. Yamaha’s exhibition at the Tokyo Motor Show features a number of futuristic commuter vehicles other than the Deinonychus including a fuel cell prototype, a hybrid prototype and a production electric scooter. For the record, a Deinonychus is a lightly built, fast-moving, agile, bipedal, killer dinosaur. This article includes a full rundown of Yamaha's other electric, methanol and hybrid scooters shown at Tokyo Read More
June 20, 2005 Our recent story on the inevitability of the electric motorcycle brought a number of reader emails pointing out projects we’d missed. One stood out head and shoulders above the rest. The rMOTO electric superbike concept was developed by ROBRADY design to showcase the technologies and expertise of several of its clients but when the first design sketches were released on the company web site in April, so great was the interest that the project has been given the green light and a prototype is to be constructed for unveiling in January 2006. In terms of design pedigree, no studio could be more appropriate than ROBRADY which has worked on an array of relevant notable projects such as the Vectrix electric and fuel cell scooters, a number of Segway scooters, Parker Hannifin’s Fuel Cells, regenerative braking systems and on a number of motorcycle designs for various companies. See inside for an exclusive interview with ROBRADY principal, Rob Brady. Read More
UPDATED May 31, 2005 Electric motorcycles are in their infancy but there’s a realistic promise of electric motor performance that is more suited for the racetrack than that of internal combustion engines and infinitely better suited for the road. As the first electric bikes find their way onto racetracks and begin mixing it with two and four strokes, it appears you need three times the horsepower in a gas-powered motor to get a bike as fast as an electric bike. And then there’s the new 500bhp 67 Kg Symetron electric motor which should really kickstart performance electric automobiles and bikes. Read More
