Go Back   Motorcycle Forum > Motorcycle.Com General Discussion > Motorcycle News > Old News > Misc News

Reply
 
Thread Tools
Old 02-04-2005, 07:33 AM   #11
allthatwanders
Founding Member
 
Join Date: Jun 2007
Posts: 18
Default Re: Carbon Fiber Frames

LOL, great point.
allthatwanders is offline   Reply With Quote

Sponsored Links Remove Advertisements
Motorcycle Forum
Advertisement
Old 02-04-2005, 07:58 AM   #12
Steve781
Founding Member
 
Steve781's Avatar
 
Join Date: Jun 2007
Location: Houston
Posts: 148
Default Carbon Conducts

Actually no. Carbon fiber is an excellent conductor. We found this out the hard way when I was building 4 wheeled racers as school projects (mechanical engineering projects are cool!). We were having hell with our electrics until we figured out we were shorting through the frame! Instead of grounding to the frame we had to carefully insulate all our electrical conductors. We didn't want to count on grounding through the frame, since the original wiring plan had called for all return to a grounding strip next to the battery. If you planned it that way from the get go I don't see any reason why you couldn't ground all your electrics through the frame.
Steve781 is offline   Reply With Quote
Old 02-04-2005, 08:03 AM   #13
maladg
Founding Member
 
maladg's Avatar
 
Join Date: Jun 2007
Location: Rock throwing distance from Home Despot HQ
Posts: 1,140
Default Re: Carbon Conducts

Thanks for the info, Steve. It is Friday and I learned something - a good day!
maladg is offline   Reply With Quote
Old 02-04-2005, 08:04 AM   #14
acecycleins
Founding Member
 
acecycleins's Avatar
 
Join Date: Jun 2007
Location: North Georgia
Posts: 4,129
Default Re: Carbon Fiber Chopper Frames

Being a GA boy, I am familiar with Revolution and they build a quality product. I'm sure they've done stress test to insure rigidity since the majority of the bikes they build tend to use larger v-twin motors (lotsa torque, ya know). The electrics would be the biggest question. Other than that, it would make a hell of a chopper. Just wish the tank were shaped a little differently.
__________________
"Slack" - a state of being in which everything flows smoothly.....a frame of mind so at ease that the universe naturally cooperates.
acecycleins is offline   Reply With Quote
Old 02-04-2005, 08:10 AM   #15
bboule
Founding Member
 
Join Date: Nov 2001
Posts: 150
Default Re: Carbon Fiber Frames

Carbon frames are so weak and whippy that nearly 100% of the top riders are riding bikes that are almost completely carbon.



Carbon bikes are so weak and prone to failure that companies like Trek offer lifetime warranties on all their carbon frames.
bboule is offline   Reply With Quote
Old 02-04-2005, 09:03 AM   #16
seruzawa
The Toad

 
seruzawa's Avatar
 
Join Date: Nov 2001
Location: 8501 ft.
Posts: 17,461
Default Re: Carbon Fiber Frames

Two for one! Good job!
__________________
"Make no mistake, Communism lost a big argument - one we know today as the 20th century."
seruzawa is offline   Reply With Quote
Old 02-04-2005, 09:07 AM   #17
seruzawa
The Toad

 
seruzawa's Avatar
 
Join Date: Nov 2001
Location: 8501 ft.
Posts: 17,461
Default Re: Carbon Conducts

It depends on the impedance of carbon fiber. It may be conductive enough to cause problems but still resist current enough to be inadequate as a conductor. Resistors used in electronics are usually made from carbon.



Anyone have data on carbon fiber's conductivity?
__________________
"Make no mistake, Communism lost a big argument - one we know today as the 20th century."
seruzawa is offline   Reply With Quote
Old 02-04-2005, 09:11 AM   #18
Neal
Founding Member
 
Join Date: Nov 2001
Posts: 730
Default Re: Carbon Fiber Frames

Remember that in the high dollar chopper world form is more important than function.If it functions as good (or even almost as good)as other frames and it looks different enough to set you apart in the show arena,its worth the money to you----IF you are aHigh dollar chopper type guy. Me personally---I would go the low tech ,low dollar,low visual impact route but I enjoy looking.This is definitely a neat idea for someone looking for a leg up on the competition.
Neal is offline   Reply With Quote
Old 02-04-2005, 09:20 AM   #19
Neal
Founding Member
 
Join Date: Nov 2001
Posts: 730
Default Re: Carbon Fiber Frames

Youd be amazed the advances in carbon fiber technology over the last 15 years. I first dealt with carbon fiber in some aircraft applications in the late 80's and there were significant ghallenges in getting the form you needed to be strong enough----these challenges have been largely overcome and I am amazed at some of the uses that have been found for Carbon fiber Also there are significant differences in strength depending on how it is formed. If constructed incorrectly, carbon fiber can be dangerous,but used correctly by good designers and competent craftsmen I have no doubt a motorcycle frame could be safely made from carbon fiber. How it would perform as far as handling (rigidity/flex,etc.)I really dont have a good feel for,not having any experience with this particular type of application.
Neal is offline   Reply With Quote
Old 02-04-2005, 09:45 AM   #20
jungkvist
Founding Member
 
Join Date: Jun 2007
Posts: 955
Default Re: Carbon Fiber Frames

And, nobody has, yet, given a good reason why anyone in thier rigtht-mind would want to use the stuff for a chopper frame, at God-knows-what a throw.
__________________
Yeah, well, you can get up and leave, DEAL WITH IT!
jungkvist is offline   Reply With Quote
Reply


Thread Tools

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off