IsoTruss - wild frame!

mango said:

I stumbled upon this and had to share. It could make for some
interesting uni frames if what they claim is true. If not, it's just
cool to look at. 😎

from http://delta7sports.com/isotruss.html
also check out the link in the above text: www.isotruss.org

[image: http://delta7sports.com/images/bk_isotruss.jpg]

Comments? Thoughts? Anyone willing to plunk down 7,000 cold ones to
tell us how it rides?

That looks remarkably like something you would find in the dumpster for
something so pricey.

interesting to hear if what they claim is true though.

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my brother said:

Unicycling - It impresses people but also makes them feel a little sad
for you at the same time.

Spencer said:

procrastination is just setting you up for max efficiency and therefore
a good thing

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If I had $7,000 I'd buy one, Lifetime Warranty...

Similar geometry to my current Norco Sasquatch frame too.

--
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Looks like a bad application of an interesting technology...or is that
an interesting application of a bad technology. Hmmmmm..... :eek:

--
FlyByTire

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That is so ugly, I don't think I'd get one even if they were stronger
than conventional frames and I could afford it.

Edd

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snorting cocaine from the thighs of prostitutes eh Edd." - Boogie

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imagine accidentally riding through dog [censored], that could get messy.

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dangerdog
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yeah imagine how much mud would get stuck in that thing, and it would be
pretty harsh to fall against the frame, looks like a cheese grater

--
kington99

Dave

- what a thoroughly post-modern subversion of the cycling genre -
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FlyByTire said:

Looks like a bad application of an interesting technology...

That's my first guess. The linked site is about touting the truss
design, not bikes made out of it. At the moment it looks like the bike
is just an example of "see, it's pretty strong and light" but little
information is given.

dangerdog said:

imagine accidentally riding through dog [censored],

Leave it to a guy named Dangerdog to think of that. 🙂 But he's
right. You build a mountain bike out of that stuff, the inside of the
trusses is going to eventually fill up with stuff that will make it
weigh a lot more than a conventional frame and be really hard to keep
clean. Kind of like using radial spokes on a unicycle. The wheel may be
super-stiff (laterally), but for most people it's not worth the
constant maintenance to keep it true.

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johnfoss

John Foss
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johnfoss said:

Kind of like using radial spokes on a unicycle. The wheel may be
super-stiff (laterally), but for most people it's not worth the
constant maintenance to keep it true.

Radial spoking doesn't make a wheel any stiffer laterally; it just
looks cool and has marginally less weight. Lateral stiffness depends
on a combination of hub width and spoke tension.

Radial spoking should not be used for any wheels driven from the hub
(such as unicycle wheels); they have no way to resist wind-up.

Regarding this frame, it looks like a typical attempt to solve a
non-existent problem, and I would expect it would be much more prone to
failure than conventional frame tubes.

--
tholub
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tholub said:

Radial spoking doesn't make a wheel any stiffer laterally; it just looks
cool and has marginally less weight. Lateral stiffness depends on a
combination of hub width and spoke tension.

You're probably right, at least in terms of being able to tell the
difference. In any case it makes the wheel super *un-stiff* in the
direction of drive. The spokes act like springs and wind up each time
you change speed. The easiest way to kill a radially-spoked unicycle is
just by idling on it. Playing basketball is quicker though. 🙂

Quoted message said:

Regarding this frame, it looks like a typical attempt to solve a
non-existent problem, and I would expect it would be much more prone to
failure than conventional frame tubes.

It may hold up better than thin bicycle tubing in terms of dents, but
still I wouldn't ever want it on a mountain bike. I think they're using
the bikes more to create attention to their truss design rather than
actually sell bikes.

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The down tube and seat tube on this frame have something around them to
prevent dirt getting into it.

The frame weighs 2.75 lbs, how many frames with a Lifetime Warranty and
no rider weight limit weigh anywhere close to that low?

--
Borgschulze

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