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E-Carver Electric Racebike Concept

Friday, July 24, 2009
Luca Bars E-Carver racer
Italian industrial designer Luca Bar's E-Carver is a wild looking racing concept.
Italian industrial designer Luca Bar submitted an interesting electric motorcycle racing concept to the Motorcycle USA Inbox. Dubbed the E-Carver, the concept incorporates some unusual features. Most prominent are the electric motor, which mounts directly onto the rear wheel hub, and the forward leaning riding position.

“The in-wheel motor is one of the existing technologies that have been already developed in the car industry,” says Bar on his E-Carver concept. Hub-mounted motors benefit from greater efficiency, as power is not lost transferring energy via transmission gears or final drives – with most electric motorcycles still utilizing chain drives (including the bikes participating in the TTXGP, not to mention the Brammo Enertia, whose styling looks similar in some ways to the E-Carver). The motor could also charge batteries on deceleration, improving efficiency even more.

E-Carver Electric Motorcycle
Mounted directly to the rear wheel, the E-Carver's motor would deliver the immediate torque of its electric power without a transmission.
Instead of the Lithium-Ion batteries powering most electric motorcycle concepts (including all the electric racebikes in the inaugural TTXGP), the E-Carver would source “magnesium-based batteries” which Bar describes as more eco-friendly. The battery pack area would take up the traditional fuel tank and engine area, not to mention cradle the rider’s legs in the unconventional riding stance.

Speaking of which, the hyper-aggressive stance is “developed trying to give the highest feeling and emotion when carving.” Get it? E-Carver. Bar rationalizes that with the direct drive rear engine, all the required rider control input could be taken care of by the hands, allowing the feet to dangle back there unused... Notice the front brake appears to be ripped straight off a Buell.

Bar describes the bike as “a concept motorcycle design that has been developed looking at existing and early future technologies. It could be developed and produced in a short future, available in 2015.”

E-Carver electric concept
For the foreseeable future, the E-Carver will remain just a concept sketch, but some reports put major electric motorcycle production just around the corner.
Who knows what will develop in the electric motorcycle market between today and 2015! For now the E-Carver racer only exists on paper (or electronic paper anyways).

What do you all think of the concept?

Check out the Luca Bar portfolio online. The E-Carver is just one of many concepts produced by Bar, who has created conceptual previews for Italian magazines. There are quite a few interesting concepts for the two-wheeled set to gaze at – including Bar’s rendering of a V-Four-powered Aprilia Tuono.
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Sumanster -Interesting  December 9, 2009 06:56 PM
Only just saw this article now. For a minute I thought there were no footpegs at all, making me think that a lot of the rider's weight would be placed on his or her knees (OW!), until I saw the pegs and heelguards mounted way back on the swingarm. Might take some getting used to, but could be great in the twisties.

Hub motor regenerative braking is pretty noticeable, though it won't spin the wheel backwards (that would require extra energy beyond what it's getting from converting the existing motion into electricity). I have an electric bicycle with a hub motor and regenerative braking (an old mountain bike with an E+ conversion kit). The regenerative braking kicks in when applying either front or rear brake lever, but only if the battery pack has less than 90% charge remaining. When I brake with a full battery, I definitely notice the extra effort needed to slow down without the regenerative braking assist.

Like Bill, I'd like to see a dustbin or bikini half-fairing of some sort, while like Derick, I hope the price is reasonable.
Derick Trammell -E-Caver Bike  July 27, 2009 04:17 AM
Excellent design and concept. Better than Brammo's! Hope they pass the money savings and simpler design and manufacturing cost on to the consumer. The Brammo is too expensive in its current form and offering, racing and competition will help bring the prices down to reality, less than $4000.00 dollars, along with the possibility of a real electric bike making it to the street for the masses. This design could easily be addapted into retro fit kits, using current bike frames in the future. E-Carver, make a few mods and improvments and you'll have a winner that could be on the street in months, not years.
Bill -E-Carver  July 25, 2009 12:10 PM
I like that it departs from styling that originated with IC engine bikes - shows more creativity and thought than just replacing the IC engine with an electric motor. It also looks to be space efficient leaving more room for batteries. There doesn't appear to be a rear brake which is fine. Regenerative braking could probably spin the wheel backwards. I'd like to see a fairing designed for an electric which doesn't need nearly as much cooling air - maybe resurrect the old "dusbin" fairing for better aerodynamics and therefor longer range at speed.
Alan G -E-carver  July 24, 2009 04:19 PM
Looks really uncomfortable, and with the engine there, a LOT of
unsprung weight.