PB: People invested trillions of dollars in syndicated bad mortgage bundles a
few years ago. Hardly meant it was a good idea. Imagine it is not that hard
to track down $70 k worth of suckers out there.
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Making fun of this idea from the point of view of a cyclist who uses 700c-ish
wheels is to miss the point, and the inventor seems to have a pretty good
understanding and appreciation of how bicycles work.
Agreed. Assuming this works beyond just in theory (my main concern is energy
loss
my nephew and his wife crossed Australia on Bromptons with their two babies
in trail. He finished with a destroyed tire wrapped in duck tape (and a
lot of pumping). He could have probably used an airless tire.
On Friday, May 3, 2013 4:42:40 AM UTC-5, bobish wrote:
Making fun of this idea
Small tires (Brompton is 349 bsd) wear out fast because of the number of
rotations to cover a given distance. Schwalbe makes the Marathon Plus in this
size, which is pretty close to being a solid tire!
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On Thursday, May 2, 2013 7:51:58 PM UTC-7, Jan Heine wrote:
Airless tires have so much resistance that you'd rather change a flat
every 10 miles! We tested a set of airless tires for our latest tire test
(Bicycle Quarterly Spring 2013), and found that they used 50% more power
than a good
Sorry that there is a misunderstanding. I don't judge the merits of the
invention until I have seen and ridden it. It is well possible that 15
years from now, we all ride on those wheels. (Grant predicted/lamented in
an early Rivendell Reader that spoked wheels would become obsolete, and he
Depends on what one means by slow.
Best Regards,
R Zeidler
Prime Mover
On May 3, 2013, at 3:48 PM, Jan Heine hein...@earthlink.net wrote:
Sorry that there is a misunderstanding. I don't judge the merits of the
invention until I have seen and ridden it. It is well possible that 15 years
The whole thing looks a bit loopy.
dougP
On Thursday, May 2, 2013 8:34:31 AM UTC-7, Scot Brooks wrote:
It's always nice to see people trying to innovate, but I doubt Jim Thill,
Peter White, or Rich Lesnik will be too worried about this.
Always interesting to see outside the box cycling innovations, usually, I
think, from people who don't have much knowledge or experience with
bicycles as they are now.
We've had one inventive customer, who for several years has been trying
to develop a new kind of human powered vehicle.
things that don't need reinventing: fly fishing, bicycle, brooks saddle
On Thursday, May 2, 2013 11:57:39 AM UTC-5, Jim Thill - Hiawatha Cyclery
wrote:
Always interesting to see outside the box cycling innovations, usually,
I think, from people who don't have much knowledge or experience
I cannot help but laugh at the sentence: *So you don’t need to rely on fat
(and sluggish) tyres to cushion your ride.* Obviously, the inventor isn't
aware of recent research – in part by *Bicycle Quarterly* – that has shown
that wider tires don't roll any slower than narrow ones. Hence even
For an urban utility/runaround bike with small diameter wheels, this
strikes me as a very clever idea. I was waiting to discover that the tires
were non-pneumatic, which might make the whole assembly even more
attractive, as there would be no more flats. I wonder if the loops smooth
things
Changing a tube is a 5 minute job, I doubt you could go to your lbs with a
broken loop thing hahaha. Some ideas should stay just that.
On May 2, 2013 8:55 PM, pb pbridge...@aol.com wrote:
For an urban utility/runaround bike with small diameter wheels, this
strikes me as a very clever idea. I
Airless tires have so much resistance that you'd rather change a flat every
10 miles! We tested a set of airless tires for our latest tire test
(Bicycle Quarterly Spring 2013), and found that they used 50% more power
than a good racing tire. Maintaining 20 mph was very hard work. And in
A very slight correction. From my own admittedly limited experience, air
less tires fell no worse than:
Thick belted tire with
Heavy, stiff sidewalls, lined with
Heavy Mr Tuffys, with
500 gram thorn-proof tubes laced with
A pint of Slime.
An airless tire can actually feel better than this --
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