Weight of Carbon Fibre M4x20 bolt?

Discuss light weight issues concerning road bikes & parts.
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prendrefeu
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by prendrefeu

Does anyone have the weight of a CF M4x20 bolt?

The bolt in my hand weighs .51g (rounded up), but it is not CF. I'm wondering what a CF one would weigh in comparison.

Thanks.
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prendrefeu
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by prendrefeu

I found that an M4x16 is .5g (not my scale, apparently the scale only goes to the tenth of a gram).

But that M4x16 costs 9,50€

Kinda pricey for an assumed .01g savings. :evil:
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by Weenie


Martin1977
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Location: Czech Republic

by Martin1977

as for price: yes, they are expensive, but those cca 10 euro for one bolt is nothing you could not afford. And even when I know that weight savings are something like 1g compared to Alu bolts, I bought them to hold my Tune bottle cages.
Just nice WW detail on your bike :D

latman
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by latman

has anyone got a link to a site ? , I am interested if the carbon is wound or runs lengthwise , either way the resin holding the fibres together must do all the work .

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prendrefeu
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by prendrefeu

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latman
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by latman

ah , PEEK thermoplastic resin (epoxy is a thermoset resin) , I wonder how long the fibres are in their "highly specialised pressure extrusion procedure"

uraqt
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by uraqt

So I have looked for PEEK bolts and then found that RENY is even better, but the issue is purchasing, even if I get my ride group to buy some it won't be enough to get past the minimum order amounts usually around $200USD.

Anybody have a supplier that will do small amounts?

C

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bigskyTi
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by bigskyTi

I was curious what you were talking about and came across this

http://onlinecatalog.tpa-us.com/viewite ... cket-head-?

seems like it might be the ticket

Horacio
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Joined: Sat Jan 21, 2012 5:28 am

by Horacio

I'd like to get in on a Schmolke order if anyone is planning on ordering.
I've been on the eternal wait list with Fairwheel...tired of waiting.
Thanks

by Weenie


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