On 1/31/2018 9:58 PM, Emanuel Berg wrote:
IIUC aramid fiber is when you not only use
carbon to reinforce the plastic (which is
ordinary carbon or CFRP) you also use aramid
("aromatic polyamide") which is synthetic
polymer perhaps in the nylon rope sense, and
this carbon/aramid reinforcement combination is
what makes the material "composite", and this
material has been commercialized using
para-aramid under the name Kevlar.

Anyone ever make a bike out of it?

I just saw it on a hockey stick, the
CCM RIbcore 40K. Unfathomably, they didn't put
the weight on it (the stick), but I checked it
myself and it weighs 435g, compared to my old
stick, which is wood with glass fiber on the
blade only, and that is 805g (including tape).
Also, the new stick was 1299 SEK
(1299.00 SEK ~= $164.97 | £116.13 | €132.76)
which in the hockey world isn't expensive.

So the material seems to be cheap and light
enough, perfect for bikes in other words?
BTW how much is a typical medium-level CFRP
frame in grams and dollars? We can compare the
expensive bike world with the expensive hockey
world...


Aramid-Kevlar strands in carbon frames was a breakthrough
concept in 1986:

https://en.wikipedia.org/wiki/Kestrel_USA

better known in other products:
https://www.youtube.com/watch?v=Hyn7eKfQXPg


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