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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 03-06-06, 02:09 PM   #1
Fix_me_up
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Design Ideas

Everyone, you are my last hope... I need ideas for a new bike design or an improvement to current bikes for my design class. I'm completely out of ideas, so I turn to you. Thanks, whatchya got?
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Old 03-06-06, 02:12 PM   #2
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11 speed?
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Old 03-06-06, 02:17 PM   #3
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Quote:
Originally Posted by MKRG
11 speed?
hahahaha shimano and honda are working on that internal gearbox thing i believe... i think for dh, 4 cross kind of applications.
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Old 03-06-06, 02:18 PM   #4
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- Front wheel drive
- integrated everything (ie. Saddle, seatpost, stem, bar, etc.)
- Love powered
- Bike rides you
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Old 03-06-06, 02:25 PM   #5
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Quote:
Originally Posted by Sirrobinofcoxly
- integrated everything (ie. Saddle, seatpost, stem, bar, etc.)
- Bike rides you
Ha Ha Ha!

Christ! I think I just wet myself...
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Old 03-06-06, 02:26 PM   #6
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Fixed-Gear coaster!
Sounds kind of like a sin, doesn't it?
I was thinking: Fixed rear hub, freewheeling cranks that had a pin that you push in or pull out to either allow or disallow coasting.
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Old 03-06-06, 02:28 PM   #7
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The word "disallow" moves me something fierce.
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Old 03-06-06, 02:38 PM   #8
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- invisible spokes
- never-feel-the-saddle-saddle
- skunk stripe deflector
- chainring tat preventer
- self lubricating self cleaning chain
- pothole guard
- pedal strike feeler
- car force field
- massive invisible electrical shock discharge secruity lock

edit: self healing paint
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Old 03-06-06, 02:42 PM   #9
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bikes have been around for quite awhile so finding an improvement would seem to be pretty tricky. You could probably find something interesting around spoke design... like imagine a 3x pattern where all the trailing spokes were spring tensioned (like the slingshot bikes) - maybe something that would store and release the extra energy that would normally disipate in the wheel lacing. It might be easy enough to actually build as well...

Maybe think Slingshot bikes and see what would happen if you replaced the chainstays with spring-tensioned wires. (maybe rear suspension, but you'd totally have a way of storing the downforce applied to the pedal and redirecting it into the rear wheel as the chainstay length increases)..

two thoughts...
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Old 03-06-06, 02:43 PM   #10
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- vibrating seat (for women)
- wheel powered suction tube and "real feel" lips (for men)
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Old 03-06-06, 02:44 PM   #11
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Quote:
Originally Posted by jyossarian
- vibrating seat (for women)
- wheel powered suction tube and "real feel" lips (for men)
careful here, i once posted a "special saddle" for women and was warned!
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Old 03-06-06, 02:50 PM   #12
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perfect the shaft-driven bike
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Old 03-06-06, 02:52 PM   #13
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build another multi-gear fixed hub.
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Old 03-06-06, 02:54 PM   #14
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integrated generator in the seat tube / bottom bracket area to power lighting.
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Old 03-06-06, 03:00 PM   #15
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Just say you designed that funky Yanagisawa and they'll be looking at it, scratching their heads until the semester is over...

Is the class about design as in fashion, or engineering?
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Old 03-06-06, 03:02 PM   #16
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As long as we're not talking efficiency then how about hydraulic drive with energy recovery from braking.

I'm thinking brake engages a proportional valve connected to a pump which works against a bladder accumulator. Button release accumulator into the main drive unit on command for "boost".

To make the units lighter than a bus you'd end up with an expensive system, prone to failure, that generates a ton of heat.

BTW you didn't mention a budget. Oh and if you are attending my Alma Matter then this has already been done as well....sorry.
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Old 03-06-06, 03:06 PM   #17
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design a different cassette system. i.e. chris king cassette vs. traditional 3/4 pawl engagement.
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Old 03-06-06, 03:09 PM   #18
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Invent a bike that will not slow down in a headwind!!!!

Quote:
Originally Posted by jyossarian
- vibrating seat (for women)
Already in the Harley aftermarket. Saw an ad the other day while waiting for my truck to get inspected.
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Old 03-06-06, 03:15 PM   #19
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You could put an explosive device in it that would be triggered by unusual unauthorized movement...naturally this would be for theft prevention purposes. You would have to label it with a warning though. Maybe something like "This Bike is a Pipe Bomb"?
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Old 03-06-06, 03:20 PM   #20
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Invent a bike with the geometry of a recumbent only flipped so the rider is forward facing with his legs behind him. In other words, a bike where you are prone (kinda like the characters in Tron) with the riders pelvis/stomach resting on some sort of padding device.
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Old 03-06-06, 03:24 PM   #21
WatchItBurn
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in soviet russia, bike rides you.
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Old 03-06-06, 03:25 PM   #22
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Quote:
Originally Posted by ostro
careful here, i once posted a "special saddle" for women and was warned!
- vibrating seat (for people that are not men)

fixed!
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Old 03-06-06, 03:35 PM   #23
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1 pc. integrated top tube fork with the bars radiating off and up from the fork legs.
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Old 03-06-06, 04:08 PM   #24
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Quote:
Originally Posted by jonb
1 pc. integrated top tube fork with the bars radiating off and up from the fork legs.
you mean like this?



you're abot 20 years too late

http://bikecult.com/works/archive/03...khionVVVV.html
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Old 03-06-06, 04:11 PM   #25
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as much as those designs can look a little goofy, i also think they look cool and would seriously love to ride one.
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