the super brompton
#26
Part-time epistemologist
Does anyone know if Len is actually producing these Ultimate Bromptons? He's been at it for years and from reading the history I can see why.
To quote the PDF: "I even made a few titanium carrier frames to replace the obscenely heavy steel ones that Brompton produced for their nifty quick-release cargo bag system. These were a big hit among the Brompton dealers and several riders I met with on one trip to England". I have one of these in case anyone is interested in a trade (I'm moving to an S-type Brompton with smaller luggage).
To quote the PDF: "I even made a few titanium carrier frames to replace the obscenely heavy steel ones that Brompton produced for their nifty quick-release cargo bag system. These were a big hit among the Brompton dealers and several riders I met with on one trip to England". I have one of these in case anyone is interested in a trade (I'm moving to an S-type Brompton with smaller luggage).
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#27
Senior Member
I think one of the best things about this "super brompton" is that it allows you to use standard parts. As Brompton folks noted to Len... he's basically a free R&D department for Brompton. His ideas may eventually make their way into Brompton production bikes. We can only hope that standard parts becomes part of that.
--sam
--sam
#29
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EDIT - Len is contactable via e-mail & is producing a run of 100 bikes "including some very exciting new improvement (!) and soon we'll have firm pricing, and be able to start taking deposits to secure those bikes"
Anyway, Len is a inspiration for Brompton modders everywhere.
Last edited by Lewis Butler; 05-21-09 at 07:46 PM.
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I still see some room for improvements:
Firstly, the handlepost should have more forward angle. This way you could get rid of the adjustable stem. This would simplify the fold, reduce weight and improve stiffness.
Also one would like to eliminate the need for a telescoping seatpost, which is just too many clamps.
My ultimate folder would be a fixed gear, super compact Brompton-like fold, <8kg, <10 sec folding.
"Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." (A. de Saint-Exupery)
Firstly, the handlepost should have more forward angle. This way you could get rid of the adjustable stem. This would simplify the fold, reduce weight and improve stiffness.
Also one would like to eliminate the need for a telescoping seatpost, which is just too many clamps.
My ultimate folder would be a fixed gear, super compact Brompton-like fold, <8kg, <10 sec folding.
"Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." (A. de Saint-Exupery)
#31
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piback, so you end up with Brompton with a greater folded width, less handlebar adjustment and sized to fit people with "duck's disease"; not my ultimate folder.
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Unfortunately there is no adjustment system that is light weight and stiff at the same time. Lightest and stiffest adjustment is obtained by different handlebars.
"Duck disease"? Actually most comfortable riding geometry for touring is widely known to be 0-7cm handlebar below saddle high. This way you get a 45° body angle and optimum weight distribution over feet, butt, and wrest. The saddle-to-bar distance should be approximately 'forearm+hand+fingers + 2. hand width'. Brompton defeats this geometry rules which is its major problem, imho. Its too upright position does cause back problems quite quickly and becomes unstable at faster speed.
Last edited by pibach; 05-22-09 at 04:20 AM.
#33
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if i have the money i would definitely buy his bike instead of forking out and sending my money to england
It's great to see such innovations and it's obviously aimed at wealthy enthusiasts of folding bikes. Better to see monied people buying such a piece of engineering than some horrible monster of a vehicle like a hummer or 4WD.
Having said that, I notice some Brompton knockers jumping on the bandwagon. The Brompton is good value for money in the long-term and the most trouble-free bicycle I've ever had. I'm not a Bromptonite and also have 2 Dahons; a Mu SL and a Cadenza 08. Having said that the Brompton is my my favourite and the best money I ever spent on any type of gadget. I'm about to have some nice mods completed to it including the inclusion of an 8 speed Shimano Alfine hub shortly. It might not make it a superlight bike but thenI don't need it to be superlight version as I only carry it short distances and can opt to roll it. It certainly won't cost me $10-12,000 and it will be just as good in its own right to cycle.
At the end of the day Brompton knockers no matter what you think it still remains one of the finest proper compact folding bikes in the world. I'd like to state for the record Len Rubin's concept is no hoax. It's clever refinement and materials work. Just drop the brand piggybacking and most of us will wish the Rubins all the best!
PS I'd like to add the UFB is not what the Brompton 'should be'. Most of us could not afford such a version whilst most of us can afford a Brompton if we save up. It's all about accessability. There's room for premium editions but the critics of the Brompton continue the old hack cliches and they usually come from the other side of the Atlantic pond. Very predictable!
Last edited by mulleady; 05-22-09 at 06:58 AM.
#34
Senior Member
"Duck disease"? Actually most comfortable riding geometry for touring is widely known to be 0-7cm handlebar below saddle high. This way you get a 45° body angle and optimum weight distribution over feet, butt, and wrest. The saddle-to-bar distance should be approximately 'forearm+hand+fingers + 2. hand width'. Brompton defeats this geometry rules which is its major problem, imho. Its too upright position does cause back problems quite quickly and becomes unstable at faster speed.
#36
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Usual xenophobic crap. Len Rubin may be an enthusiast but he is still basing his UFB concept around the core design of Brompton's founder Andrew Ritchie. While it might be one amazing bike they have no right to promote with Brompton's brand mentioned in the word 'Super Brompton'. That's piggybacking and perhaps it would be wise for Len to desist from using such a word when launching the UFB.
(You do seem touchy this morning, my friend of the thunder-calves. )
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That's why I applaud socially run but commercial businesses such as Brompton and Bike Friday who bring handbuilt durable quality and innovative folding bikes to the market at a fair enough price. Both marques will last a lifetime and fold beautifully and ride relatively well. They aren't the only good companies but I like what they make and what they stand for.
Last edited by mulleady; 05-22-09 at 07:50 AM.
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As far as i can recall the seatpost is used to lock the frame when it is in the folded position, so if you do without the telescoping you will need to find another locking mechanism. It is one of the Brompton's design strengths that when folde it is actually locked into one solid lump with nothing loose or flapping about.
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(You do seem touchy this morning, my friend of the thunder-calves. )
Touchy? Perhaps a little lol but when you read the usual cliches about spendng money in England or what 'Brompton should be' I have some strong things to say back lol!
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As far as i can recall the seatpost is used to lock the frame when it is in the folded position, so if you do without the telescoping you will need to find another locking mechanism. It is one of the Brompton's design strengths that when folde it is actually locked into one solid lump with nothing loose or flapping about.
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Regarding the telescoping seatpost, yes, that is exactly the point. It double serves to lock the rear. But for larger people it has to be telescoping. Only way out clearing this up seems to have a slightly higher main tube. Thinking this further, you get to slightly bigger wheels, 18" or 20". Also the handlepost becomes shorter and stiffer (the uberlong and wobbly handlepost is the main problem of folding bikes, imho). To optimize folding size, a simple tuck under fold doesn't work then. This is why Bike Friday, Mezzpo, or Birdy do a slightly asymmetric fold-under sideways. But this makes the package too wide. So the answer of Dahon was the Curl, a Brompton-Friday-mix fold but with 18" wheels and main tube curling in between the wheels. I like this idea - but seemingly this concept is not mature yet. Maybe there are some other ways to go. Still lots of space left for more ideas and innovations to come.
#43
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Fortunately, there is always someone willing to pay a fortune for something they believe to be 'the ultimate'... no matter what that costs. Then, when something better comes along - carbon-fibre, for example, they'll be first in the queue again.
And for what? Just to say you've got one. Most of us could probably lose 5lb personal weight and achieve the same effect. Good luck with the drooling!
And for what? Just to say you've got one. Most of us could probably lose 5lb personal weight and achieve the same effect. Good luck with the drooling!
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That's why I applaud socially run but commercial businesses such as Brompton and Bike Friday who bring handbuilt durable quality and innovative folding bikes to the market at a fair enough price. Both marques will last a lifetime and fold beautifully and ride relatively well. They aren't the only good companies but I like what they make and what they stand for.
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mulleady wrote : . . " that's why i applaud socially run but commercial businesses such as brompton and bike friday who bring handbuilt durable quality and innovative folding bikes to the market at a fair enough price. Both marques will last a lifetime and fold beautifully and ride relatively well. They aren't the only good companies but i like what they make and what they stand for."
#46
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Fortunately, there is always someone willing to pay a fortune for something they believe to be 'the ultimate'... no matter what that costs. Then, when something better comes along - carbon-fibre, for example, they'll be first in the queue again.
And for what? Just to say you've got one.
And for what? Just to say you've got one.
Well on my limited 54 kg weight, if I remove 5lb, people will think that I arrived from a 2 dimension universe !
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Fortunately, there is always someone willing to pay a fortune for something they believe to be 'the ultimate'... no matter what that costs. Then, when something better comes along - carbon-fibre, for example, they'll be first in the queue again.
And for what? Just to say you've got one. Most of us could probably lose 5lb personal weight and achieve the same effect. Good luck with the drooling!
And for what? Just to say you've got one. Most of us could probably lose 5lb personal weight and achieve the same effect. Good luck with the drooling!
On the other hand, one could just spend $2000 on an equivalent nonfolder and invest the other $10,000 in a "bribe fund" for train conductors and security guards. Or $3000 on a good roadie, $2000 on a good Brompton, and pick the right tool for the job.
#48
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Yeah... but what if a 16.5 lb super brompton is the right tool for the job. Just sayin'.
I mean... it will never be the right tool for the job for me because I can never afford it... but it could be the right tool for someone. I wish Len the best of luck... and I hope that some day his ideas get picked up by Brompton for their bikes (which I can probably afford with a little belt tightening).
--sam
I mean... it will never be the right tool for the job for me because I can never afford it... but it could be the right tool for someone. I wish Len the best of luck... and I hope that some day his ideas get picked up by Brompton for their bikes (which I can probably afford with a little belt tightening).
--sam
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Yeah... but what if a 16.5 lb super brompton is the right tool for the job. Just sayin'.
I mean... it will never be the right tool for the job for me because I can never afford it... but it could be the right tool for someone. I wish Len the best of luck... and I hope that some day his ideas get picked up by Brompton for their bikes (which I can probably afford with a little belt tightening).
I mean... it will never be the right tool for the job for me because I can never afford it... but it could be the right tool for someone. I wish Len the best of luck... and I hope that some day his ideas get picked up by Brompton for their bikes (which I can probably afford with a little belt tightening).
I must be either really smart or incredibly dumb when it comes to managing money because I could easily afford one and I see signs on the subway asking people to support welfare programs for families at my income level (granted I don't have a family to support, but still). But I'm having a hard time imagining the UFB doing more than an appropriate selection of 3 or 4 high end specialist bikes.
#50
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I think the key is that you don't have a family to support. I've heard they can get really expensive, really fast. Not unlike certain "super" bikes.
As for the right tool for the job... What if the right tool is an ultra-lightweight multi-modal commuter with good gearing. Most folders can handle the multi-modal part. Some can handle the decent gearing. Some can handle the ultra-lightweight bit. However, there are few that can do all of that. My guess is that this "super brompton" can probably handle that with few, if any, compromises.
I still can't afford it... and even if I could afford it, I could easily convince myself to use that money for something else. That doesn't mean that someone out there won't buy it. As a matter of fact, I suspect that the bikes will sell.
--sam
As for the right tool for the job... What if the right tool is an ultra-lightweight multi-modal commuter with good gearing. Most folders can handle the multi-modal part. Some can handle the decent gearing. Some can handle the ultra-lightweight bit. However, there are few that can do all of that. My guess is that this "super brompton" can probably handle that with few, if any, compromises.
I still can't afford it... and even if I could afford it, I could easily convince myself to use that money for something else. That doesn't mean that someone out there won't buy it. As a matter of fact, I suspect that the bikes will sell.
--sam