Full face helmets carbon or composite ?
- Thread starter jungle
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carbon makes you go faster, its pure physics
fwiw, i weighed fiberglass & carbon d2's on a digi scale - they were very close to identical weights.
You could get two helmets for the cost of one carbon helmet. One for practice and one for racing. Thats what I do.
My two cents......
My two cents......
or you could get a carbon helmet and regular. 1 for practice and one for racing, whats depressing is you find out that the carbon is nearly as heavy as the regular one after u bought the carbon first.
but u re forgetting just as dexter said that by the 100th axiom of newton (was lost and i found it in pinkbike)....carbon makes u go faster:
(x*C)/h=v
x: mass of carbon in ur helmet
c: carbon constant which is actually a function depending on the websites u visit
v: velocity
h: planck's constant...just to make it look fancy
just got new six-six-one pro bravo. real light and comfortable.
http://www.sixsixone.com/Catalog_661Bike.aspx?id=6372b057-06ef-4243-bdb6-e9998a9fe806&product=250b7622-f54d-49c8-94ad-b90796a0d62e
http://www.sixsixone.com/Catalog_661Bike.aspx?id=6372b057-06ef-4243-bdb6-e9998a9fe806&product=250b7622-f54d-49c8-94ad-b90796a0d62e
there is no anvantage/dis-advantage to either helmet. besides, most carbon helmets are only something like 30% carbon anyway. the other 70% or so is fiberglass composite. it all comes down to looks.
i think i am going to a motoX helmet this year. my TLD D2 Carbon helmet always seemed a little flimsy to me.
i think i am going to a motoX helmet this year. my TLD D2 Carbon helmet always seemed a little flimsy to me.
they always make sure its the outer 30% though
carbon fiber is a composite, your question makes no sense.
He is obviously talking about a non-CF composite.
the composite d2 is actually 30% carbon
Do you remember the figures? Just curious, I run the normal d2.
I would prefer the D2 composite, kevlar / fibre glass / carbon fibre weave over the carbon fibre helmet.
Carbon is a strong material that is for sure, but i don't know how thick the carbon is on the helmet. A few freinds of mine have carbon 661 helmets and i can see the carbon fibre delaminating under the clear coat.
I suspect the composite helmet would have greater puncture resistance, especially seeing it contains kevlar, that the reason i decided to use it.
I would really like to see some crash info on carbon vs normal helmets. It is something i have always wondered about but never wanted to test myself, if you get my drift.
Carbon is a strong material that is for sure, but i don't know how thick the carbon is on the helmet. A few freinds of mine have carbon 661 helmets and i can see the carbon fibre delaminating under the clear coat.
I suspect the composite helmet would have greater puncture resistance, especially seeing it contains kevlar, that the reason i decided to use it.
I would really like to see some crash info on carbon vs normal helmets. It is something i have always wondered about but never wanted to test myself, if you get my drift.
Okay....having a carbon helmet versus a plastic versus fiberglass....none are going to any better for protection. The layer of carbon is very thin and carbon is very weak if not stressed along the lay of the fibers. Seriously, it does not matter. Carbon offers NO benifits in a helmet (the plastic outer shell weighs so little weight loss is not a factor)
All of the Troy lee D2s are made of carbon, glass and aramid (functionally the same thing as kevlar). They contian 20% aramid no mater what the model. The % of carbon and glass just change a little. The composite is 30%/50% and the carbon is 60%/20%. Not a huge change (and not worth the $ IMO). I do think that the aramid (kevlar) is the most important item here as far as puncture resistance, duarability, and non-catastrophic failure. That stuff is very tough!