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Can a Dahon Speed still fold if I convert it to drop-bars?

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Can a Dahon Speed still fold if I convert it to drop-bars?

Old 03-15-20, 09:51 AM
  #1  
Nyah
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Can a Dahon Speed still fold if I convert it to drop-bars?

I like drop-handlebars, to the point of not wanting to spend money/time on bicycle ownership that doesn't involve them. Does this preclude me from enjoying the Dahon Speed frame of folding bicycle?
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Old 03-15-20, 10:38 AM
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There are to many variable to answer your question. Width, drop, brakes used and a few others. I am afraid you will need to try and see if it works. Roger
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Old 03-15-20, 10:48 AM
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Originally Posted by Nyah View Post
I like drop-handlebars, to the point of not wanting to spend money/time on bicycle ownership that doesn't involve them. Does this preclude me from enjoying the Dahon Speed frame of folding bicycle?
I am right there with ya. I haven't done the conversion to drops on my folder just yet, but that is on my agenda. I have nerve issues with my hands and the straight bars are hard for me to move my hands around enough to keep on top of their function. I'd say that is a pretty common thing with cyclists - hands going numb, circulation issues, etc. My big bike (Disk Trucker) has drops and they help a lot by giving me multiple hand positions and posture positions to work with.

That having been said, I am not concerned about what folding challenges I may face. The benefit to my riding will far out weigh any folding challenges for me.

However -

I do not expect the bike to fold well without the bars removed as the mast and bar collapse on my bike inside (between the folded frame and wheels). Drop bars would not allow that folding to happen. So I anticipate needing to remove the bars.

Your situation may be different, however I am not in an environment where I need to hop on public transportation on a routine basis and the foldability of the bike would be imperative to efficiency in a daily commute, for example. So what ever the challenges may be in my case I don't have any additional environmental/transportation efficiency constraints that govern what I do. The only one that is a consideration for me is collapsed size. So by having bars external to the folded package that does increase the folded package, obviously. I suppose if that ends up being a big enough consideration at any point in time I can convert back to straight bars for the duration. Otherwise I'll just deal with it.
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Old 03-15-20, 01:26 PM
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Once upon a time, it existed. Example 1, Example 2.




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Old 03-15-20, 01:48 PM
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Those Dahons have the stem post folding to the outside, whereas I think most Dahons now fold to the inside (at least my Speed does). You can get aftermarket posts that fold either way.
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Old 03-15-20, 03:51 PM
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I did a mock up with my 2016 Boardwalk but did not like the loss of compactness.(inside fold)

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Old 03-15-20, 06:52 PM
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Originally Posted by 3speedslow View Post
I did a mock up with my 2016 Boardwalk but did not like the loss of compactness.(inside fold)
Did you happen to take a photo of it folded?
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Old 03-15-20, 08:50 PM
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It's definitely not going to work if the stem post folds to the inside. It's very helpful to know that stem posts are available which fold to the outside!

So I think that's great! One hurtle cleared in getting the kind of folding bicycle for touring. Next is finding a way to duplicate a triple chainring crank. For use on the Speed D9 bicycle.
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Old 03-16-20, 09:40 AM
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You could check either eBay or Alibaba to see if an outside folding stem is available. That would definitely solve the fold issue. These bikes look amazing with drop bars.
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Old 03-16-20, 10:11 AM
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FYI, I used this T handle from aliexpress that folds to the outside:

https://www.aliexpress.com/item/3284...7d584c4dcPCdXl

Then you need some clamps like this:

https://www.aliexpress.com/item/3284...7d584c4dcPCdXl

This configuration will let you fit a normal 31.8mm bar, and adjust the bar height and reach pretty easily. I found the fold to the outside a little easier to deal with than the stock fold, though not quite as small.

I didn't use this for drop bars, but I think it would still work.
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Old 03-16-20, 10:39 AM
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I put on drop-down on a TT post... it folds on the chainring/outer side - original post folded on the inner side. It does work well but once folded, the dropped handle and brake take more room making the device less compact which is not an issue for me. (not worse the a verge x18)

Some conversions use quick release adaptor and bullhorn handle so that is can be flattened when folded like the latest dahon speed pro tt
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Old 03-16-20, 10:44 AM
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Originally Posted by seat_boy View Post
FYI, I used this T handle from aliexpress that folds to the outside:

https://www.aliexpress.com/item/3284...7d584c4dcPCdXl

Then you need some clamps like this:

https://www.aliexpress.com/item/3284...7d584c4dcPCdXl

This configuration will let you fit a normal 31.8mm bar, and adjust the bar height and reach pretty easily. I found the fold to the outside a little easier to deal with than the stock fold, though not quite as small.

I didn't use this for drop bars, but I think it would still work.
I need that handlebar that has the outside fold myself. Thanks!!!
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Old 03-16-20, 10:55 AM
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Originally Posted by mikedk13 View Post
Did you happen to take a photo of it folded?
No, sorry about that! Once I did a trail fold and found out the results I stoped thinking permanent change. I like the straight bars too. For a 20 wheeled dropbar bike, I have decided to get a Nano mini velo when they come back.
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Old 03-16-20, 11:40 AM
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Originally Posted by seat_boy View Post
FYI, I used this T handle from aliexpress that folds to the outside:

https://www.aliexpress.com/item/3284...7d584c4dcPCdXl

Then you need some clamps like this:

https://www.aliexpress.com/item/3284...7d584c4dcPCdXl

This configuration will let you fit a normal 31.8mm bar, and adjust the bar height and reach pretty easily. I found the fold to the outside a little easier to deal with than the stock fold, though not quite as small.

I didn't use this for drop bars, but I think it would still work.
Do you have any pictures?

Why not use a mast that has a clamp on the top instead of a T handle? I assume the clamps are 25.4mm? That would give you both options I would think - either normal bars or stock straight bars.
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Old 03-16-20, 01:09 PM
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Sorry, I don't have any pictures of it folded, but here's what it looked like assembled:




I've since sold my Dahon, so I'm not able to take a picture of it folded.
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