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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 10-11-06, 09:07 PM   #1
donkekus
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Am I crazy?

...for wanting one of these? The talk in the "Post Your Bike" thread about folders and seeing a guy riding one made me curious...

http://a-bike.co.uk/
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Old 10-11-06, 09:38 PM   #2
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wheels too small
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Old 10-11-06, 09:56 PM   #3
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This is much better. Especially the fixed variety.

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Old 10-11-06, 10:02 PM   #4
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Did you notice that there was not one photo of a person actually riding the razor...I mean...ABike in the whole website?
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Old 10-11-06, 10:06 PM   #5
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good point. i saw a guy on similar thing once... the word jackass comes all to quick to mind.
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Old 10-11-06, 10:48 PM   #6
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good point. i saw a guy on similar thing once... the word jackass comes all to quick to mind.
Quite literally too, as that thing is naught but an ass jack....
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Old 10-11-06, 10:58 PM   #7
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serious - unless you ride totally smooth surfaces that thing is gonna bite you hard
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Old 10-11-06, 11:08 PM   #8
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do those wheels even have enough angular momentum to prevent you from falling over?
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Old 10-11-06, 11:14 PM   #9
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Originally Posted by matthavener
do those wheels even have enough angular momentum to prevent you from falling over?
The wheels appear to have double sealed bearings. If so, then yes.

Scientifically, the Flintstone shuffle helps matters significantly.
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Old 10-11-06, 11:44 PM   #10
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ha haha!

after posting this, i read a review (that was linked on their site nonetheless!) about how sh!tty the thing was on news.bbc.co.uk...
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Old 10-11-06, 11:46 PM   #11
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clive sinclair stays ****ing up
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Old 10-11-06, 11:50 PM   #12
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too small wheels.

A strida has a somewhat similar shape and looks like it might just work. I hate all the other folders.
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Old 10-11-06, 11:58 PM   #13
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whatever. I'd ride the ***** outta that thing.
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Old 10-12-06, 12:24 AM   #14
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whatever. I'd ride the ***** outta that thing.
For $400, you had better ride it to the toilet, and trackstand whilst taking one too.
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Old 10-12-06, 06:35 AM   #15
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Quote:
Originally Posted by moki
whatever. I'd ride the ***** outta that thing.
You would if you could. I don't think it's really ridable. Too small wheels is not an aesthetic issue... if you hit a midsized pothole, you go ass over teakettle. Any minor road imperfection will smack you twice as hard. It just doesn't roll over stuff like a 700c does but hits it head-on.
Also, did anyone check where the cranks are? Almost over the rear wheel, waaaay too far back in relation to the centre of the bike. Probably you sit way too far back on the bike, which is dreadful for handling and stability, and the cranks are still too far back under your ass.
Not too fond of the idea of a two-chain double gear system, either.
Aslo, the pedals barely clear the ground... you think cornering or riding beside a bump in the road/curb or indeed hopping a curb would be fun?

Strida with belt drive is where it's at.
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Old 10-12-06, 07:03 AM   #16
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My dad picked up a strida2 on ebay & those things are way fun. This a-bike doesn't seem very functional.
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Old 10-12-06, 11:06 AM   #17
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Get a raleigh twenty and be done with it.
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Old 10-12-06, 11:24 AM   #18
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I test rode this "ABike" contraption, and it's actually rideable. Not for any real distance, but maybe a few blocks, on a sidewalk. It might be good if you have to walk a couple blocks to a train, and then a couple blocks after the train, on the other end of your commute.

At $400, it's overpriced by about $300. (When I say "overpriced", I'm talking in terms of what the market for a micro-folding bike can bear, not about build quality/materials/design; all of those factors seemed fine. At $400, I'd expect a properly-performing machine, no gimmicks....)

Oh, and if you pull up on the bars of the Abike even slightly, you'll flip/wheelie backwards and fall instantly, as about 90% of your weight is on the back wheel, even though it does not feel like it at first.

Part of the reason it's so expensive is that is has a kind of "double gearing". Essentially, there's a chainring driving a chain, which goes to a "mid-gear" and then the force is multiplied again through another length of chain, which leads back to the rear wheel. They don't show it well on the site, but there's a lot of pretty technical stuff going on inside that housing that leads from the crank to the rear wheel. Lots of little sprockets and chains, gears meshing directly with adjacent gears to "step-up" the gear ratio....etc....

Also, I own a Strida (www.strida.com) which I also consider to be a gimmick-on-wheels. They are super-flexy, uncomfortable and they don't really even fold up that small. Stridas look pretty cool, but they seem like they were designed by a smart designer that never actually rides a bike. It's kind of cool to have one, it's usually in the trunk of my car, but rarely actually gets used for anything practical.
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Old 10-12-06, 11:33 AM   #19
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Quote:
Originally Posted by matthavener
do those wheels even have enough angular momentum to prevent you from falling over?
men much smarter than myself argue that rotational inertia actually plays a very small role in keeping a bicycle upright

check it

(not meant to correct you or be argumentative, i just like to geek out on this stuff)
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Old 10-12-06, 11:43 AM   #20
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I test rode this "ABike" contraption, and it's actually rideable. Not for any real distance, but maybe a few blocks, on a sidewalk. It might be good if you have to walk a couple blocks to a train, and then a couple blocks after the train, on the other end of your commute.
... which begs the question, for those distances, why not just walk? I mean, really.
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Old 10-12-06, 12:30 PM   #21
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I think anything under 16" wheels and you are going to suffer.
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Old 10-12-06, 12:32 PM   #22
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Quote:
Originally Posted by shot
Also, I own a Strida (www.strida.com) which I also consider to be a gimmick-on-wheels. They are super-flexy, uncomfortable and they don't really even fold up that small.
There goes that idea... Thx for the info
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Old 10-12-06, 05:03 PM   #23
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Yeah, as for gyroscopic force, it's negligible on a good pair of bike wheels anyway.. try spinning your wheels quickly while you're off the bike then trying to tip it over: quite easy. It's the fact that the front wheel encounters the least resistance when inline with the rear (ergo straight), so it won't want to turn much.. it takes force to.
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