Anyone know anything about it? Are the 'spokes' really made of string as they appear to be?
The description says kevlar rear wheel, so if its not the hub or rim made of kevlar (a tad unlikely, methinks), it'll be the spokes.
JimP
-- Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all. - DNA
Anyone know anything about it? Are the 'spokes' really made of string as they appear to be?
The description says kevlar rear wheel, so if its not the hub or rim made of kevlar (a tad unlikely, methinks), it'll be the spokes.
They're not spokes per se, but some kind of net of kevlar, protected with plastic (Jobst says that kevlar's hygroscopic and fails when wet). They can be attached to any 32 spoke rim with the right diameter.
There's a Trice on eBay with a very interesting rear wheel:
Anyone know anything about it? Are the 'spokes' really made of string as they appear to be?
Well, I don't know about that one ('sugino tension-disc' apparently), but there was a wheel marketed for mountain-biking that was kevlar 'string' spokes arranged in a web. Unfortunately, the name is evading recall at the moment. Might have been made by Tioga?
They're not spokes per se, but some kind of net of kevlar, protected with plastic (Jobst says that kevlar's hygroscopic and fails when wet).
True, to a point. It does absorb more water than the other common advanced composites type fibres. The properties deteriorate when it absorbs water, but I wouldn't necessarily categorise it as 'fails when wet'. Also, it's not normally beyond the wit of man to keep something dry (by, for example coating it with plastic or resin) and they do make boats out of kevlar (in combination with other things).
It's a pig to cut with scissors, however (but there is a trick / knack to manage it).
-- Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all. - DNA
On Fri, 31 Mar 2006 20:23:04 +0100, Ambrose Nankivell quoted a certain iconoclast:
(Jobst says that kevlar's hygroscopic and fails when wet).
Ah, so that's why it's used for the sails of the most expensive racing yachts!
He actually gave the description that Teh Ian Smith gave above, and I paraphrased him wrong. My apologies and a retraction.
I was actually thinking of posting here with an (OT) question about composites this weekend. (The GRP bootlid of my car has a nasty texture and discolouration and I was wondering if it would regain or lose colour if I sanded it down, and if so, how to make it look slightly less tatty.) -- Ambrose
Well, they're not arranged radially, and they are brought up, erm, tangentially to the OP's question. So you are contradicted.
So there! 😉
But (stringing this along a bit) I still don't _feel_ it 😉
JimP
-- Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all. - DNA
On Fri, 31 Mar 2006 20:23:04 +0100, Ambrose Nankivell quoted a certain iconoclast:
(Jobst says that kevlar's hygroscopic and fails when wet).
Ah, so that's why it's used for the sails of the most expensive racing yachts!
Well it could be that they aren't pure kevlar but a sandwich composite of fibres and film. -- Phil Cook looking north over the park to the "Westminster Gasworks"
There's a Trice on eBay with a very interesting rear wheel:
Anyone know anything about it? Are the 'spokes' really made of string as they appear to be?
Well, I don't know about that one ('sugino tension-disc' apparently), but there was a wheel marketed for mountain-biking that was kevlar 'string' spokes arranged in a web. Unfortunately, the name is evading recall at the moment. Might have been made by Tioga?
Anyone know anything about it? Are the 'spokes' really made of string as they appear to be?
Kevlar string. I remember seeing a few examples of the Sugino Tension Discs when they were new, but they can't have been that brilliant, or else we'd all be using 'em...
Anyone know anything about it? Are the 'spokes' really made of string as they appear to be?
Kevlar string. I remember seeing a few examples of the Sugino Tension Discs when they were new, but they can't have been that brilliant, or else we'd all be using 'em...
And I'd imagine quite noisy which may be an issue on a bent with your ears nearer the wheel.
-- Tony
"The best way I know of to win an argument is to start by being in the right." - Lord Hailsham