Carbon fibre downtube protection

PB Forum :: All Mountain, Enduro & Cross-Country
Carbon fibre downtube protection
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Author Message
flag griffter18
Posted: Oct 21, 2011 at 11:07 Quote
totally agree that a frame guard is cheaper than a whole frame.
Im just curious to see if something made from D30 or Poron would provide a better alternative.
Carbon or Glasfibre guard would cost around £30. Once its bust it needs replacing.
Poron or D30 should provide the same or better impact protection but wouldnt neet replacing.

As I said Im in favour of protecting the area in front of the crank as this is prone to rock-strikes and £30 is much cheaper that £1k plus the strip/rebuild cost.
flag pbuser102331
Posted: Oct 21, 2011 at 16:12 Quote
griffter18 wrote:
totally agree that a frame guard is cheaper than a whole frame.
Im just curious to see if something made from D30 or Poron would provide a better alternative.
Carbon or Glasfibre guard would cost around £30. Once its bust it needs replacing.
Poron or D30 should provide the same or better impact protection but wouldnt neet replacing.

As I said Im in favour of protecting the area in front of the crank as this is prone to rock-strikes and £30 is much cheaper that £1k plus the strip/rebuild cost.

D30 is no good at sharp object impacts.
flag griffter18
Posted: Oct 24, 2011 at 8:55 Quote
"D30 is no good at sharp object impacts"

And Carbon Fibre is?
http://video.bicycling.com/video/Trek-Impact-Test-Standard-Carbo

Im betting that the layup of most guards is done for speed & cost so will only provide limited protection.
Even Treks advance protection layup still get cracked at 38mph
http://video.bicycling.com/video/Trek-Impact-Test-Enhanced-Carbo


Perhaps a combination of both some kind of Kevlar/Carbon Fibre matt & D30 would provide the best solution and keep weight down.
flag sidekicked
Posted: Oct 27, 2011 at 9:37 Quote
what they need to use is...

http://www.milliken2.com/mft/mfthtml.nsf/page/home.htm
or
http://www.baesystems.com/BAEProd/groups/public/documents/bae_publication/bae_pdf_tensylon_survivability.pdf

I've seen both of these materials first person, some extremely tough material
flag shacky
Posted: Jun 20, 2014 at 15:43 Quote
Try this stuff it's really good

https://www.pinkbike.com/buysell/1230632/

3m ventureshield Really good and comes with full fitting instructions and free postage (in the UK)
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