Living Car Free - 2,287 mpg electric-assist bike?

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View Full Version : 2,287 mpg electric-assist bike?


donrhummy
09-23-09, 03:41 PM
Of course, if your electricity is from solar or wind, it's even better. :)

http://gas2.org/2009/09/23/electric-mountain-bike-gets-the-equivalent-of-2287-mpg/

It's not cheap though.



...Ranging from $5,995 for the Commuter USV, to $13,995 for the OB1, Optibikes are designed to be the antithesis of the throw-away culture, minus the batteries, which are warranted for an industry-leading 3 years/30,000 miles, whichever comes first.

Powering the OB1 are a 20ah lithium-ion battery and an 850w continuous brushless DC motor that Optibike says will give you about 45 miles of electric-only operation on a single 4.5-hour charge and 57 miles with a light to moderate amount of pedaling. The bike has two speeds, Fast and Eco. In Fast, a full charge will provide up to 50 minutes of riding; in Eco, a full charge will give 2.25 hours of unassisted propulsion. Going on a longer trek? Add the optional secondary battery to double the Optibike’s range.
...
On electric alone the OB1 will reach a top speed of 20 MPH on flat pavement. But why stop at 20 MPH when the bike is screaming for more? Once up to speed, I found the OB1 would maintain about 30 MPH with light pedaling and 33 or so with moderate pedaling.


mesasone
09-24-09, 02:02 AM
This is kind of stupid, you can already make a bike like for that much cheaper, and in more practical forms. For example, there is the StokeMonkey (which does not have a freewheel like the motor in the article, so you have to peddle while the motor is running) for Xtracycles/Big Dummie (I'm thinking about building one), which to me makes way more sense than a mountain bike as it can carry heavy bulky loads where you might actually need that kind of power, or you can order Cyclone kits (which does have a free wheel making pedaling optional) that will mount to virtually any bike if you don't want a long tail.

I'm not against the idea of electric assist by any means, but the bike featured in the article is kind of meh.