HOTNESS!!! 20" Custom Brompton,...
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Link is unsecure / can't load web site.
Who modified, or put this bike together? Thanks for sharing. |
Not sure here. Brompton has a wheelbase of 104.5cm, within the bracket for a full size bikes. Folders typically have a shorter wheelbase giving rise to a squirrelly handling. Now this 20" 'Brompton' seems to have a wheelbase of the order of 118cm, there to squeeze in the 20" into the folded size. This is well beyond the bracket employed for full size bikes, presumably resulting in a klutzy sluggish handling.
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No it is not repaired. Roger
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they discrminate against non usa website apparently.
1. Internet search for the website name 2. Go to forum, page 23, Very Big Edition post |
Seems a long reach to the handlebars. Good for tall people but guessing by the seat angle that the rider is not tall.
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Stock Brompton. now, is about a 24" virtual top tube.. so, yea, that guy must be rather tall ..
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Built by the famous Juliane Neuß.
"The wheel is a project for a rather large customer. " (per Google Translate) https://cimg8.ibsrv.net/gimg/bikefor...f12f7d3b04.png |
Ah She (Juliane Neuß)
. of the Brompton recumbent Kit. {My computer locked up using that link, so caution advised} :innocent: |
Originally Posted by fietsbob
(Post 21633504)
Ah She (Juliane Neuß)
. of the Brompton recumbent Kit. {My computer locked up using that link, so caution advised} :innocent: |
Originally Posted by tds101
(Post 21637950)
The problem is there's absolutely NOTHING WRONG with that link. I can easily access it from another site (where I saw it in the first place). Totally ridiculous.
Edit: that was the forum link. The one directly above (for Neuss) shows: Web sites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for www.junik-hpv.de. The certificate is only valid for chronos.space4rent.de. Error code: SSL_ERROR_BAD_CERT_DOMAIN |
Well...perhaps are the certificates not valid for the wrong spelling of the page address (with https: )?
What do your browsers tell you once the "s" was removed from the links (http: )? Edit: Obviously, it is a forum "feature" - the software will add automatically an "s" after recognizing the letters h t t p and there is no way to avoid that. |
Originally Posted by gilesa
(Post 21640214)
My Firefox browser reports "Error code: SEC_ERROR_BAD_SIGNATURE" for the SSL certificate. Other browsers may be less explicit, but that seems like a real problem to me.
Edit: that was the forum link. The one directly above (for Neuss) shows: Web sites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for Human Power Vehicles | Spezialfahrräder. The certificate is only valid for chronos.space4rent.de. Error code: SSL_ERROR_BAD_CERT_DOMAIN Now, it wasn't necessary to actually quote me, so can you not do it again,...unless you manage to find a way to share the link WITHOUT having it become invalid. https://cimg5.ibsrv.net/gimg/bikefor...e5ad11da18.png https://cimg5.ibsrv.net/gimg/bikefor...7d4e80bc96.jpg |
take the s off https and the website works..lmao
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Originally Posted by BikeLite
(Post 21640863)
take the s off https and the website works..lmao
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https://cimg5.ibsrv.net/gimg/bikefor...c316a305fa.jpg
There's no reason that this bicycle couldn't be made with a shorter toptube. Look how, in folded-mode, the toptube of the 20" version is sticking out beyond the rear wheel and compare it to where the TT of the 16" version ends. The only reason that I can see for the extra length is to accommodate the tall owner, not because the Brompton fold system requires it. If anyone sees that I'm wrong, please explain why. I don't own a Brompton, have never even seen one in person. |
Originally Posted by Nyah
(Post 21808889)
There's no reason that this bicycle couldn't be made
with a shorter toptube. Look how, in folded-mode, the toptube of the 20" version is sticking out beyond the rear wheel and compare it to where the TT of the 16" version ends. The only reason that I can see for the extra length is to accommodate the tall owner, not because the Brompton fold system requires it. If anyone sees that I'm wrong, please explain why. I don't own a Brompton, have never even seen one in person. |
Originally Posted by tds101
(Post 21810713)
If you would have read all the comments, etc, you'd see that it's a custom build for a "rather large" rider. That could be tall, big & tall, etc.
Originally Posted by 2_i
Not sure here. Brompton has a wheelbase of 104.5cm, within the bracket for a full size bikes. Folders typically have a shorter wheelbase giving rise to a squirrelly handling. Now this 20" 'Brompton' seems to have a wheelbase of the order of 118cm, there to squeeze in the 20" into the folded size. This is well beyond the bracket employed for full size bikes, presumably resulting in a klutzy sluggish handling.
with a shorter toptube. Look how, in folded-mode, the toptube of the 20" version is sticking out beyond the rear wheel and compare it to where the TT of the 16" version ends. The only reason that I can see for the extra length is to accommodate the tall owner, not because the Brompton fold system requires it. If anyone sees that I'm wrong, please explain why. I don't own a Brompton, have never even seen one in person. |
Originally Posted by Nyah
(Post 21811394)
There's no reason that this bicycle couldn't be made
with a shorter toptube. Look how, in folded-mode, the toptube of the 20" version is sticking out beyond the rear wheel and compare it to where the TT of the 16" version ends. The only reason that I can see for the extra length is to accommodate the tall owner, not because the Brompton fold system requires it. If anyone sees that I'm wrong, please explain why. I don't own a Brompton, have never even seen one in person. |
Originally Posted by Nyah
(Post 21811394)
You're confused. In my post, I acknowledged that the bicycle owner is tall. My post was addressing where someone implied that a 20" bicycle with the folding system that Brompton uses, would need to have an extra large frame.
There's no reason that this bicycle couldn't be made with a shorter toptube. Look how, in folded-mode, the toptube of the 20" version is sticking out beyond the rear wheel and compare it to where the TT of the 16" version ends. The only reason that I can see for the extra length is to accommodate the tall owner, not because the Brompton fold system requires it. If anyone sees that I'm wrong, please explain why. I don't own a Brompton, have never even seen one in person. |
Love the concept of the folding bike you can take just about anywhere. I haven't seen one and every time I go to their website they're either sold out or have a very limited selection. Guessing I'll have to wait until post covid
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Originally Posted by 2_i
(Post 21811415)
The tolerances for having the bike still fold like a Brompton are very tight. The hook off the front wheel must grab the chainstay behind the pusher. To the extent that I can tell, the particular wheelbase is the shortest you can afford for that with the 20" wheels. For full-size bikes and most manufacturers the wheelbase changes very little with bike size. If you want, you can email Juliane and ask. Obviously if you want to build a bike from scratch, you can do whatever you want, but history has not brought in, so far, anything seriously competing with Brompton in the tightness of the fold against the bike's riding ability.
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Originally Posted by Nyah
(Post 21812014)
By "pusher" do you mean pedal? The position of the front wheel can be accommodated by adding-to/subtracting-from, the toptube, on each side of the hinge in equal amounts. For instance, if 3" were subtracted from the toptube on each side of the hinge, the front wheel would still contact the chainstay in the same location, even though the TT is now 6" shorter. Perfectly do-able, you just have to subtract equal amounts.
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