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Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

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Old 08-15-11, 02:13 PM   #1
gongon
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Super light 20" folder to carry on back?

Recently I've been leaning toward the 24 lb Downtube Nova, but I intend to carry it on my back at times so I started to wonder about even lighter 20" folders. I'm worried that the only choices are going to be:

a) Lighter due to cheap materials that won't last long.
b) Lighter due to advanced materials that will be expensive.

Would a super light yet durable 20" folder for under $500 be too much to ask for?
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Old 08-15-11, 03:29 PM   #2
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Would a super light yet durable 20" folder for under $500 be too much to ask for?
If you expect someone else to build it for you then yes.
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Old 08-15-11, 04:46 PM   #3
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light, cheap, durable

pick any two...
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Old 08-15-11, 05:13 PM   #4
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Why not 16"? It will be smaller and easier to carry on your back.

For example, you can shave the rack, fenders, lighter tires etc from this one http://www.thorusa.com/dahon/current/curved3.htm It also comes with IGH so less things that can get banged.

Also, how do you plan to caryy on your back, some backpack? Straps?
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Old 08-15-11, 05:16 PM   #5
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Spend $699 shipped and get this at 22.5 pounds and 8 IGH speeds. I believe you get a lifetime warranty if you sign up at Dahon.
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Old 08-15-11, 11:53 PM   #6
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If the OP's priority is that the bike is to be carried on the back then the A-Bike is the obvious solution. If they want something they can usefully ride then I think the Dahon Mu Uno or Sl are the lightest 20in wheel bikes (8.3kg ?) currently available on the over the counter market, although I think you would need some very well designed (expensive) padding to enable them, or any other proper bike, to be carried on the back for any distance.
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Old 08-16-11, 12:25 AM   #7
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Why do you want to carry it? Did you look into rolling the bike on its wheels or on small wheels atached to the bike like a Brompton? This can be done with several bikes and with a cower on the bike. My instinkts say "why carry something that has got wheels"? Then if you want to carry it on a hiking trip or inside a shoppingsenter it is understandable, at least almost ..
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Old 08-16-11, 05:00 AM   #8
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I suppose putting it on your back frees the hands.

BTW there is a sticky on bikes in backpacks.
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Old 08-16-11, 09:36 PM   #9
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I suppose putting it on your back frees the hands.

BTW there is a sticky on bikes in backpacks.
It's also better if you have to go up several flights of stairs.
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Old 08-16-11, 10:11 PM   #10
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It's also better if you have to go up several flights of stairs.
... while eating ice cream and talking on the phone. ;-)

Reminds me the Bergmönch

http://vimeo.com/5611817
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Old 08-16-11, 10:54 PM   #11
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b) Lighter due to advanced materials, that will be expensive.
but that will be how you get it done, and titanium don't come cheap.
Ala UFB, prototype, SRP.. make that 10K$

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Old 08-17-11, 07:28 AM   #12
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That Bergmonch would have been nice if it was actually a bicycle.
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Old 08-17-11, 08:39 AM   #13
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Why carry something with wheels on your back?
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Old 08-17-11, 09:29 AM   #14
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The Bergmönch is such a great idea that just makes so much sense. I think I'm going to start marketing a foldable kayak that you can strap to your back to free your arms when swimming up-stream so that you can kayak back down.
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Old 08-17-11, 09:50 AM   #15
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The Bergmönch is such a great idea that just makes so much sense. I think I'm going to start marketing a foldable kayak that you can strap to your back to free your arms when swimming up-stream so that you can kayak back down.
that is so funny
I was thinking along the same lines with this expensive toy


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Old 08-17-11, 09:53 AM   #16
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how many miles you think you have to carry .... jow many flights of stairs...or or or
how many miles you actually want to ride the bike.....

besides all the good advice already given ...

the easier it is to carry.... the worst it is to ride
the better it rides .... the worst to carry

this is over simplyfying it of course....
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Old 08-17-11, 04:12 PM   #17
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Thanks for all the replies!

I think 20" is as small as I'm willing to go because I may end up on gravel roads at times.

I don't really like any of the designated folding bike backpacks I've seen, and yeah, I've checked out the stickied thread. I plan on carrying the bike on my back by attaching it to the outside of a "normal" sized backpack which will act as a bit of a buffer between my back and the bike, and the inside will be free to carry anything else I might need.

Freeing my hands is exactly why I want the bike on my back, though I'm obviously going to be riding it wherever I can.
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Old 08-17-11, 05:08 PM   #18
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If you are going to hike to eg Machu Picchu then taking a bike is a good idea as you will be able to travel much faster, plus there would be sections forcing you to carry the bike, so having it on the back is sensible.

You won't get a super light folder for $500 unless you are willing to consider a frameless bike with no wheels.
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Old 08-18-11, 08:34 AM   #19
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The Bergmönch is such a great idea that just makes so much sense. I think I'm going to start marketing a foldable kayak that you can strap to your back to free your arms when swimming up-stream so that you can kayak back down.
Skiers, sky divers and water park visitors do it all the time. Gravity is fun.
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Old 08-18-11, 01:01 PM   #20
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http://www.google.com/products/catal...d=0CEcQ8gIwBQ#

it should be possible as long as you have a backpack with a solid frame and enough room to get the bike away from kicking you in the kidneys ..... (dont ask)
I would get a small bike as the 16 inch Curve .... as it is smaller, especially without any doohickeys mounted ....
otherwise a 20 incher will work as well, but I would again look for one without fender, carrier, and other accessories which will make it heavier and use up more space ...

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Old 08-18-11, 02:29 PM   #21
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I like the Bergmönch as a folding luggage carrier you can ride downhill. It may have some superiority over a folding bike. In general unless your plan is to hike over rocky terrain I suggest you use your folding bike as a luggage rack. If you are climbing over rocky terrain and planing to roll down hill, consider a mini bike, or even roller skates.
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Old 08-18-11, 02:54 PM   #22
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Skiers, sky divers and water park visitors do it all the time. Gravity is fun.
How many kayaks should I put you down for?
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Old 08-22-11, 05:36 PM   #23
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The Brompton is the only one that fits in a backpack (without taking wheels off). And can be tuned to 9kg. But then we are speaking about $2.000 price tag...
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Old 08-23-11, 02:02 AM   #24
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The Bergmönch is such a great idea that just makes so much sense. I think I'm going to start marketing a foldable kayak that you can strap to your back to free your arms when swimming up-stream so that you can kayak back down.
I'm sure you could jury-rig this to work!
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Old 08-23-11, 06:03 AM   #25
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I'm sure you could jury-rig this to work!
Sure... as a wading pool for the little kids.

Is that really being sold as a "kayak"? May as well also market it as a folding yacht.
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