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Safe to Assume? (Page 2)
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 2014-05-30 8:24 AM in reply to: Danno77 |
Member  1748     Exton, PA |  Subject: RE: Safe to Assume?Originally posted by Danno77 Originally posted by mike761 Originally posted by jblamb1401 This argument is off the freaking deep end. I can understand not putting a disk wheel sideways into the wind behind a Corvette, but hanging 15lbs over 2 points on a carbon frame is going to crack the CF. Come on now... I even did some basic calcs to show everyone it was silly worrying about it, and they still don't understand? it's such a minor thing that it's not worth getting worked up over, but your "basic calcs" don't even consider the effect of vibrations or torsion, both which are the main point here. I think I even posted above that it wouldn't be a big deal to hang a bike like that in your garage, but on a bike rack it's the compression on the tube, the twisting in the wind, and the vibrations from driving down the highway. ^^^ Actually it does- go to engineering school and get your degree, then spend 10 years do Carbon fiber R&D for military applications, Bike applications, aerospace applications, and medical applications. Then come talk to me. |
| 2014-05-30 10:45 AM in reply to: mike761 |
Expert 3126 Boise, ID | Subject: RE: Safe to Assume? Originally posted by mike761 Originally posted by Danno77 ^^^ Actually it does- go to engineering school and get your degree, then spend 10 years do Carbon fiber R&D for military applications, Bike applications, aerospace applications, and medical applications. Then come talk to me. Originally posted by mike761 it's such a minor thing that it's not worth getting worked up over, but your "basic calcs" don't even consider the effect of vibrations or torsion, both which are the main point here. I think I even posted above that it wouldn't be a big deal to hang a bike like that in your garage, but on a bike rack it's the compression on the tube, the twisting in the wind, and the vibrations from driving down the highway. Originally posted by jblamb1401 This argument is off the freaking deep end. I can understand not putting a disk wheel sideways into the wind behind a Corvette, but hanging 15lbs over 2 points on a carbon frame is going to crack the CF. Come on now... I even did some basic calcs to show everyone it was silly worrying about it, and they still don't understand?
Game, set, match.
I just don't like the hanging style because they are less secure, more bike movement, and there is a potential for pain scratching. They are definitely much cheaper though. |
| 2014-05-30 2:34 PM in reply to: mike761 |
Regular 1161 Hamilton, IL | Subject: RE: Safe to Assume? Originally posted by mike761 Originally posted by Danno77 Originally posted by mike761 Originally posted by jblamb1401 This argument is off the freaking deep end. I can understand not putting a disk wheel sideways into the wind behind a Corvette, but hanging 15lbs over 2 points on a carbon frame is going to crack the CF. Come on now... I even did some basic calcs to show everyone it was silly worrying about it, and they still don't understand? it's such a minor thing that it's not worth getting worked up over, but your "basic calcs" don't even consider the effect of vibrations or torsion, both which are the main point here. I think I even posted above that it wouldn't be a big deal to hang a bike like that in your garage, but on a bike rack it's the compression on the tube, the twisting in the wind, and the vibrations from driving down the highway. ^^^ Actually it does- go to engineering school and get your degree, then spend 10 years do Carbon fiber R&D for military applications, Bike applications, aerospace applications, and medical applications. Then come talk to me. So, when talking to laymen, you use words like modulus and throw numbers out there and expect us to understand, but I'm the ignorent one. I'll come talk to you when you learn to use the english language to communicate with other individuals at their level. I went to school for that. So, my lesson here is that I should not assume I can decipher stuff over my head. What did you learn? |
| 2014-05-30 3:20 PM in reply to: Danno77 |
Member 1748 Exton, PA | Subject: RE: Safe to Assume? Originally posted by Danno77 Originally posted by mike761 Originally posted by Danno77 Originally posted by mike761 Originally posted by jblamb1401 This argument is off the freaking deep end. I can understand not putting a disk wheel sideways into the wind behind a Corvette, but hanging 15lbs over 2 points on a carbon frame is going to crack the CF. Come on now... I even did some basic calcs to show everyone it was silly worrying about it, and they still don't understand? it's such a minor thing that it's not worth getting worked up over, but your "basic calcs" don't even consider the effect of vibrations or torsion, both which are the main point here. I think I even posted above that it wouldn't be a big deal to hang a bike like that in your garage, but on a bike rack it's the compression on the tube, the twisting in the wind, and the vibrations from driving down the highway. ^^^ Actually it does- go to engineering school and get your degree, then spend 10 years do Carbon fiber R&D for military applications, Bike applications, aerospace applications, and medical applications. Then come talk to me. So, when talking to laymen, you use words like modulus and throw numbers out there and expect us to understand, but I'm the ignorent one. I'll come talk to you when you learn to use the english language to communicate with other individuals at their level. I went to school for that. So, my lesson here is that I should not assume I can decipher stuff over my head. What did you learn? Actually those are laymens terms and simplified calcs for what we are talking about. But this is just a forum, if you would prefer to believe in the guy at the shop that says " dude that's not a good idea the carbon fiber might not handle it" that's your choice. I'm just giving some info. |
| 2014-05-30 5:51 PM in reply to: Danno77 |
| 71 | Subject: RE: Safe to Assume? Where did you get your roof rack that is immune to vibration and wind? |
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