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dogrunner
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Gravity carbon
02/01/19 at 12:13am
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Love the whole concept  Cheesy
  
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SurlyDave
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Re: Gravity carbon
Reply #1 - 02/01/19 at 12:32am
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Cheap, strong, light, and pick two still holds true.
I did not see much talk about the lay up process where the magic happens with carbon fiber parts.  Seems more like a plastic frame to me.
  
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dogrunner
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Re: Gravity carbon
Reply #2 - 02/03/19 at 1:15pm
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Here is another look


Im a gearhead and this  has been asked of me as to why this hasnt come about yet in the main stream 


Bike Co's have been sticking to us with no vaseline in the past yrs IMO 😬

« Last Edit: 02/03/19 at 1:24pm by dogrunner »  
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NC Kingsting
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Veni Vidi Vici

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Re: Gravity carbon
Reply #3 - 02/03/19 at 3:10pm
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The front triangle idea is a smart one. Especially with angle head sets and flip chips enabling some pretty radical changes to the way a bike rides. Assuming someone did the math on the geometry correctly this is a great idea. 

Cheap carbon I’m a bit less thrilled about. I have a fair amount of experience with the material coming from a high level sailing background both as a user and in the manufacturing environment and while I believe it has amazing properties it is also very fickle to work with and get good results. Fiber orientation is critical as is getting the resin ratios correct. Failing that the part winds up being excessively heavy, negating the expense and time required, or blows up with a fair amount of excitement involved. Carbon hates to bend, so it is ruthless in finding weak spots, point loading them, and then dramatically shattering. That having been said, it’s amazing how manufacturing process have evolved and perhaps this is a real breakthrough in materials technology. 

That having been said, my preliminary answer would be that it will either be heavy, have a short life cycle, or both. Personally I think the better material might be good old aluminum. Strength to weight ratios on the T6 or T7 material are impressive and hydroforming has allowed for tube shapes that dissipate strress extremely well. While not as sexy, I’ll bet you would wind up with a much better and cheaper bike.   

Either way, kudos to guerrilla gravity for continuing to innovate and bring bike prices down to an accessible point.
  
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