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| Bike I ride: | 08 Remedy 8 Frame King Hubs/ Mavic 729rims 36 Float RC2 Atlas FR Crank |
| Favorite Trails: | Freight Train Capitol Forest Granny's Kitchen |
| Products Recommended: | none - View Products |
| Companies Supported: | none - View Companies |
I looked through the thread a bit and couldn't find it... do you know the weight? Yep, most things do have some form of carbon in them. In fact, purely by definition, you could call my foot a carbon composite in that it's made up of more than two types of material, and one of them is carbon. Heck, even the epoxy in the V10 is made up of carbon. But if I have a glass-fiber/epoxy mix, I'm not going to call it a carbon composite... this just simply isn't done. A carbon composite either has a PAN or pitch based carbon fiber, in some type of resin matrix. There is also a C-C composite, where even the matrix material is carbon, for high temperature applications.
I agree, engineers probably aren't designing bikes to protect the rider in the event of a crash. Designers turn to carbon composites because you make a part of equivalent stiffness and/or equivalent strength at less than half the weight. Impact resistance can also be considered, but if that was your only goal, there are certainly cheaper avenues to explore.
I think I was just annoyed by the comment is all. Don't get me wrong, if I replied to every comment that annoyed me, well I wouldn't have time to ride. I just felt I could contribute as I do know a little about the topic. I'm not sure what you mean- "...carbon fiber instead of lighter more efficient carbon composites"
Carbon fiber is what makes up a carbon composite... The fiber is either a continuous, long, or chopped, and is infused with a polymer of some type, usually an epoxy.
I know they do make layups for certain applications that are designed to dissipate energy as it fails, or even specifying the failure location so that it isn't catastrophic. Is that what you meant?
Light-weighting from CFRP comes from two things though. carbon and epoxy are both significantly lighter than Al or Steel. 2- if your part doesn't need to be strong in a certain location or direction, you can use the material more efficiently. I'm fairly certain this practice is applied to F1. They throw composites everywhere else in the automotive industry to reduce part weight and to reduce part count by combining parts. If you can do the same thing in F1, why wouldn't you? 
crap, too late to patent I take it... :( At the same time A) who's going to be that patient while on the trail, if it's only a minor adjustment needed and B) I think I'd just remove the caliper if the rotor couldn't rotate through. I don't know. I half expect to see it on Topeak's next 45 dollar multi-tool within a year.
haha... crazy.
that and an on-board rotor truing fork for extremely thin rotors? 
Any news on that DH trail being built? I can't find any info...
Olympia, WA.
agreed.
Best video out of Oly that I've seen. All Trail 30? Or was there other stuff in there too? 
I think I am at least at the triangle, but I doubt it's below. That's some good info that I wish I had known prior to cutting my seat post to save.. well basically nothing in weight. I've been looking at getting an adjustable seat post though. I doubt trek would give me a third frame if this happened again, so I think I'll make the adjustment right quick. About Us
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Corvallis, Oregon, United States 
Sep 14, 2009 at 18:57