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View Poll Results: This Bike Deserves a....
WTF? 4 40.00%
FTW!! 6 60.00%
Voters: 10. You may not vote on this poll

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Old 04-29-11, 02:12 PM   #1
Oramas
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The Alpha Bike

The Alpha Bike



Quote:
The Alpha Bike, designed by a group of engineering students, contains an entirely internal drivetrain that allows riders to switch between fixed-gear and multi-gear setups. The simple switch is enabled by an electronically controlled clutch, part of the Switchable Integrated Free-Fixed Transmission (SWIFT), discreetly hidden in the bike's frame. Populating the front hub are a drum brake and a dynamo, which juices the bike's electronics -- the back hub contains a three-speed gear set, put in motion by a simple push-pull cable. When the front wheel starts rolling, an LED screen mounted in the carbon fiber handlebars is illuminated, displaying time, cadence, and speed, among other things -- this data and more is stored on an accessible SD card.
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Old 04-30-11, 01:35 PM   #2
DX-MAN
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Not important enough to me for a vote.......
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Old 04-30-11, 02:38 PM   #3
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I'm not very interested in any of that stuff and I have doubts about how practical it all is. Never-the-less, I think that it's cool that they built it. You have to have a prototype design before you can turn new ideas into a practical design.

I voted FTW and I'm a non-repetant retro grouch.
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Old 04-30-11, 02:45 PM   #4
Monster Pete
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I like the enclosed chainless drive and the hub brakes, not too sure about all the electronics though.
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Old 05-01-11, 07:43 AM   #5
NotTheOne
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Looks pretty cool, I'd ride it. I can always appreciate student engineers who dedicate their projects to bicycles - this helps everyone.
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Old 05-01-11, 09:59 AM   #6
Flying Merkel
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Looks like an engineering exercise rather than a practical bike. Engineers tend to fall in love with techno-stuff for its own sake.
I'd like to know how this 3-speed is superior to existing 3 speed hubs.

Want to impress me? Work on the bike lock problem. Secure, lightweight, compact, durable in an affordable package.
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Old 05-01-11, 11:48 AM   #7
itsmoot
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Looks like its just a garden variety Sturmey Archer 3-speed hub:

http://www.thealphabike.com/ALPHA/Concept.html#2

The integrated clutch in the bb is the inspired bit.

I needs me one of those computer-controlled milling machines. Tthe bb shell is beautiful. The lugs ain't bad either!

Needs a rear brake though. Maybe actuating the right brake lever switches it to fixed gear mode...

Last edited by itsmoot; 05-01-11 at 11:53 AM.
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