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#76
03-29-2014, 03:46 PM
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Big Forest Frameworks SS 26er...
William 
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#77
03-29-2014, 04:56 PM
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My dad was with Schwinn for thirty years in the 50s, 60s, and 70s, and I've always been particularly fond of both the aesthetics and the engineering of the late thirties cantilever frame models.
The frames were electro-forged (flash-welded) straight gauge 1010 tubing and heavy as hell, but there's a graceful sweep to them that's still attractive 75 years after they first hit the showrooms. From an engineering standpoint, the twin tubes that are welded to the down tube just aft of the head tube, sweep back in a graceful arc to welds at the top of the seat tube, and continue as seat stays to the rear dropouts function to keep the head tube and seat tube in the same plane; any lateral forces trying to twist the HT and ST out of plane are counteracted by the twin tubes, one in compression while the other is in tension. Frank W. Schwinn was the inventor, and the design was copied by other manufacturers when the patent expired in the mid-fifties. A late thirties Schwinn ad:  The patent:  1950s copycats:  
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#78
03-30-2014, 08:54 PM
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Volagi Viaje and Liscio seem to sell well and have received at least some positive critical acclaim. I have liked mine so far and think it has love/hate looks.
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#79
08-20-2015, 03:38 PM
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Nice Retrotec...
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#81
08-20-2015, 10:09 PM
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Curved tube bike thread...
I had been on the fence about a trek sawyer...I have just been pushed over the edge.
Sent from my iPhone using Tapatalk
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#83
08-21-2015, 07:40 AM
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Quote:
I've got one...and I like it. William
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#86
08-22-2015, 10:26 AM
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This is the most ridiculous thing I maybe have ever seen come out of the bike industry.... at all levels - product, identity, graphics, advertising. How did they even sell one?
__________________
cimacoppi.cc
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#87
10-14-2015, 08:08 PM
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#88
10-14-2015, 08:50 PM
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#89
10-14-2015, 10:44 PM
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Siren Twinzer
This one is my favorite curved-tube bike that I've ever seen, probably for its relative subtlety.
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Linear Mode
