steveo
05-04-2011, 01:51 PM
A cool project from the folks at UPENN:
http://www.thealphabike.com/ALPHA/ALPHA_files/BikeClean.png
We set out to create a bicycle that would push the boundaries of integrated systems. The result is Alpha, the first bicycle with a fully internal drivetrain including an electronically-controlled clutch allowing the rider to switch between fixed-gear and freewheeling configurations. All of the bike’s components, including a belt drive, brakes, and an onboard electronics suite, are housed inside the custom-machined frame. Besides protecting these fragile components from degrading environmental exposure, this integration also gives the bike a streamlined, striking appearance.
http://www.thealphabike.com/ALPHA/ALPHA.html
http://vimeo.com/22966263
http://www.thealphabike.com/ALPHA/ALPHA_files/BikeClean.png
We set out to create a bicycle that would push the boundaries of integrated systems. The result is Alpha, the first bicycle with a fully internal drivetrain including an electronically-controlled clutch allowing the rider to switch between fixed-gear and freewheeling configurations. All of the bike’s components, including a belt drive, brakes, and an onboard electronics suite, are housed inside the custom-machined frame. Besides protecting these fragile components from degrading environmental exposure, this integration also gives the bike a streamlined, striking appearance.
http://www.thealphabike.com/ALPHA/ALPHA.html
http://vimeo.com/22966263