downunder wrote: ↑
Wed Mar 13, 2019 3:50 am
BayAreaKite wrote: ↑
Tue Mar 12, 2019 8:13 pm
downunder wrote: ↑
Tue Mar 12, 2019 3:44 pm
blisters are caused by friction, not material hardness.
The carbon we are all discussing is a composite material. Composites have 2 constituent components, the fiber and the matrix. The hardness of a composite depends primarily on the matrix. If it is epoxy vs. urethane vs. nylon you will have very different hardness. But regardless, hardness is a meaningless characteristic of the properties of a kite bar, unless you are discussing impact to your face.
Bare carbon bicycle handlebars
are very common these days.
Sorry sunshine, do you actually ride a bike with a bare carbon handle? Cmon, even with a gloves, the surface would be very very slippery.
When riding, you sweat like hell. This means what? More grip is needed. So, no, for occasional bike rider, fine, for pros, not fine.
Same with the wet hands in the water.
I'm out of this discussion. Can't compete with a hype.
man, what is up with forums these days? Everyone thinks they're an engineer or a pro at every sport.
1) The thermal conductivity of aluminum is about 205.0 W/m K, bravo for getting that right. As for carbon fiber, some epoxy? try at least 30-40% by weight epoxy! The thermal conductivity of epoxy is about 0.15–0.25 W/mK. When you hold the bar, or any composite structure, you are touching the resin not the fibers. I'm a mechanical engineer and I've been working with composites my whole career and it is a very basic and well known fact even among non engineers that the thermal conductivity of composites is very low. Even if you sand the top layer of resin off, and touch the fibers, the heat cannot transfer between fibers because there is resin between them.
2) Secondly, sunshine, yes I do ride a bike with bare carbon handlebars. In my previous life I raced bikes with bare carbon bars. And I'm not the only one, see this link for handlebars in the tour de france: https://road.cc/content/tech-news/22547 ... tel-bardet
I have never had a problem with slippery bars, and yes I know how to sweat. In fact some of my bars with handlebar tape (especially synthetic, not cork) are much more slippery.
It sounds like you are just trying to argue with people for the sake of arguing. The only sound reasoning you've made in this whole thread is that padding on the bar ends will prevent injury to your eye. But everything else you say is complete BS.