@baralah This is actually "tube-to-tube" construction. It differs from lugs in one important way - there isn't the set angle that lugs dictate so the ability to set custom geometry is unmatched (just like you'd do with a cut and mitered metal frame). Additionally, our construction method here requires the use of carbon stratification at each tube intersection - this gives the chance to change that lay-up in terms of the material, orientation, and amount to "tune" the frame for each rider.
@baralah Most brands have moved to the "buy" instead of "make" approach and don't actually construct their own products at all. Instead, they go to Asian suppliers who have either open-moulds or proprietary moulds which they then use to make the mass-produced varieties of frames in monocoque fashion. Cyfac is largely focused on custom and well-tuned framesets so having someone else make our products doesn't fit this ethos. We control the design, the fabrication, and the finish.
The tubes are preformed in our moulds according to a variety of different specs/criteria for the usage. The black stuff is special epoxy that's mixed with some carbon for tacking purposes and a small amount of structural function. More is put on than what remains once a variety of prep steps happen before the kevler-carbon stratification. So, the weight is really minimal while the integrity and durability is fantastic.
Really interesting. So the tubes are preformed carbon fibre? What's the black gooey stuff that's put on the joints before the additional reinforcement is added? Is it simply epoxy glue? Doesn't that add to the weight, or is it special stuff? So many questions!!
@nadoeloiskat most handmade bike frames, unless built for pro-teams or collectors (Which can turn a huge profit per bike, $10k-20K per unit) never really turn a huge profit margin for the builder. Added component parts generally can give the builder a profit on markups.
i have been riding a cyfac nerv carbon (alumn lugs, nerv carbon tubes) full custom for 7 years now. its brilliant!! mysterious mix of compliant yet stiff, very resonsive yet not harsh or twitchy. on rides people acuse of me demonic descents and never slowing down for corners... its not me - its the bike :) i can't say enough good things about it, or the US distributor eric sakalowski.
You are putting aluminum bottom bracket in direct contact with the carbon fiber. The plastics reinforced with carbon fibers can induce galvanic corrosion in attached aluminum structure. not a good idea. Wrap a layer of glass over the BB, will ya.
You are putting aluminum bottom bracket in direct contact with the carbon fiber. The plastics reinforced with carbon fibers can induce galvanic corrosion in attached aluminum structure. not a good idea. Wrap a layer of glass over the BB, will ya.
We are using Kevlar for its resistance to cutting/shearing/breakage as well as its unique properties for dealing with vibrations. It ensures a level of structural integrity and resistance to breakage that cannot otherwise be attained.
so.., why put a kevlar/carbon layer down first, when about all the good it's going to do is add abrasion resistance.. if you want kevlar anywhere surely it'd be on the outside...
No wonder carbon fiber frames are expensive...
pxkimx 4 days ago
please correct me if I'm wrong. Most manufacturers have moved away from this 'lug-to-lug' construction, is that correct?
baralah 1 month ago
@baralah This is actually "tube-to-tube" construction. It differs from lugs in one important way - there isn't the set angle that lugs dictate so the ability to set custom geometry is unmatched (just like you'd do with a cut and mitered metal frame). Additionally, our construction method here requires the use of carbon stratification at each tube intersection - this gives the chance to change that lay-up in terms of the material, orientation, and amount to "tune" the frame for each rider.
racer3E 1 month ago
@baralah Most brands have moved to the "buy" instead of "make" approach and don't actually construct their own products at all. Instead, they go to Asian suppliers who have either open-moulds or proprietary moulds which they then use to make the mass-produced varieties of frames in monocoque fashion. Cyfac is largely focused on custom and well-tuned framesets so having someone else make our products doesn't fit this ethos. We control the design, the fabrication, and the finish.
racer3E 1 month ago
The tubes are preformed in our moulds according to a variety of different specs/criteria for the usage. The black stuff is special epoxy that's mixed with some carbon for tacking purposes and a small amount of structural function. More is put on than what remains once a variety of prep steps happen before the kevler-carbon stratification. So, the weight is really minimal while the integrity and durability is fantastic.
teamcyfac1 4 months ago
Really interesting. So the tubes are preformed carbon fibre? What's the black gooey stuff that's put on the joints before the additional reinforcement is added? Is it simply epoxy glue? Doesn't that add to the weight, or is it special stuff? So many questions!!
benkilbee 4 months ago
Very interesting carbon fiber porn
cheesewedge631 5 months ago
carbon fibers aren't supposed to come in contact with any metals it cause eventual decay.
edwardsmatt5 6 months ago
The metal bb shell is actually covered with kevler initially...
racer3E 5 months ago
that bottom bracket is reinforced to the absolute dickens.
chaderotti 9 months ago
nice to see them being built these works of art!
I was wondering what kind of glue is to support all the stress!
Ascolta
Trascrizione foneticaDizionario - Visualizza dizionario dettagliato
dexxa1234 11 months ago
Looks like a lifewasting job.. I hope it pays financially back.
nadoeloiskat 1 year ago
@nadoeloiskat most handmade bike frames, unless built for pro-teams or collectors (Which can turn a huge profit per bike, $10k-20K per unit) never really turn a huge profit margin for the builder. Added component parts generally can give the builder a profit on markups.
khaderach19 8 months ago
i have been riding a cyfac nerv carbon (alumn lugs, nerv carbon tubes) full custom for 7 years now. its brilliant!! mysterious mix of compliant yet stiff, very resonsive yet not harsh or twitchy. on rides people acuse of me demonic descents and never slowing down for corners... its not me - its the bike :) i can't say enough good things about it, or the US distributor eric sakalowski.
fed111r 1 year ago
i hope i get to use this technology someday in an aircraft. custom hand made.
datzfast 1 year ago
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Aaliyahlacey 1 year ago
wow!
This is the MOST detailed video of how to fabricate a Carbon Fibre bike I have ever seen!
thank you for sharing!
kyrieeleison1 1 year ago 4
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dimitriharris 1 year ago
What type of glue are you tacking the tubes together with?
dimitriharris 1 year ago
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You are putting aluminum bottom bracket in direct contact with the carbon fiber. The plastics reinforced with carbon fibers can induce galvanic corrosion in attached aluminum structure. not a good idea. Wrap a layer of glass over the BB, will ya.
mzungu54 1 year ago
You are putting aluminum bottom bracket in direct contact with the carbon fiber. The plastics reinforced with carbon fibers can induce galvanic corrosion in attached aluminum structure. not a good idea. Wrap a layer of glass over the BB, will ya.
mzungu54 1 year ago
サーフボードの製造工程に近いね。これはケブラーで、サーフボードはガラス繊維という違いはあるけど。
harryhiromu 1 year ago
We are using Kevlar for its resistance to cutting/shearing/breakage as well as its unique properties for dealing with vibrations. It ensures a level of structural integrity and resistance to breakage that cannot otherwise be attained.
teamcyfac1 1 year ago 2
so.., why put a kevlar/carbon layer down first, when about all the good it's going to do is add abrasion resistance.. if you want kevlar anywhere surely it'd be on the outside...
wekavpossum 1 year ago
As a mechanical engineer and bike lover I find this really inspiring. Cheers!
MauricioBarrera1 1 year ago
ok . . . la vita e bella
ericofable 2 years ago
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ericofable 2 years ago
Epic video.
mimmymimmymim 2 years ago
Epic comment. ; )
sharaldson 2 years ago