Round Tail Bike
08-18-11 | 04:27 PM
#26
Senior Member
Joined: Jan 2011
Posts: 491
Likes: 0
From: phoenix
Bikes: Miyata 110, Schwinn super le tour 12.2, Schwinn super sport, Lemond Zurich
The biggest problem I can see is that you will never be able to get an ideal photo of the bike since you can't match the crank arm angle to that of the seat tube!
08-18-11 | 08:16 PM
#28
Bicycle Repair Man !!!
Joined: Sep 2007
Posts: 27,266
Likes: 152
From: YEG
Bikes: See my sig...
There are only a handful of these on the planet unless you want an original... which will cost many times what the reproduction costs... which is still a fair bit of change due to the extensive amount of custom work required to build this bicycle.
It is actually easier to build a conventional tandem.
The frame has to be hand formed and it took a lot of prototypes to determine the right type of steel and the bottom bracket and cranks also have to be custom made.
One can see how the diamond frame became dominant... it is fairly easy to fabricate and is very strong while the Pedersen also requires an intense amount of work (almost 60 brazed joints).
08-19-11 | 06:56 AM
#30
Senior Member
Joined: Jul 2004
Posts: 13,358
Likes: 665
From: northern michigan
Bikes: '77 Colnago Super, '76 Fuji The Finest, '88 Cannondale Criterium, '86 Trek 760, '87 Miyata 712
08-19-11 | 07:26 AM
#31
Senior Member
Joined: May 2011
Posts: 72
Likes: 0
Larger cantilevers, while not light, do offer a smooth ride and (in my opinion) beautiful lines. You'd be surprised how often people look past the old, chipped paint and mention how much they like the looks of this bike:
The frame design of the roundtail bike in question is based on principles that have been applied much more tastefully in the past.
The frame design of the roundtail bike in question is based on principles that have been applied much more tastefully in the past.
08-19-11 | 08:24 AM
#35
aka Tom Reingold
Joined: Jan 2009
Posts: 44,338
Likes: 6,637
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
I do like THAT bike, uprighter. It deserves a new chain. 
Colonel, I love Mr. Horse. My wife says I talk and chew like him.
Colonel, I love Mr. Horse. My wife says I talk and chew like him.
__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
08-19-11 | 08:27 AM
#36
Senior Member
Joined: May 2009
Posts: 2,741
Likes: 151
From: Kitchener, ON
I saw vertically stiff mentioned in the copy but what about the lateral stiffness huh? All the best bikes these seem to be vertically stiff AND laterally compliant. I prefer my laterallness to be compliant thank you very much. Also this thing needs 650b wheels with 55mm tires.
08-19-11 | 08:46 AM
#37
Curmudgeon in Training
Joined: May 2009
Posts: 1,956
Likes: 11
From: Rural Retreat, VA
Bikes: 1974 Gazelle Champion Mondial, 2010 Cannondale Trail SL, 1988 Peugeot Nice, 1992ish Stumpjumper Comp,1990's Schwinn Moab
What we really need, given the rise of disc brakes, are ovoid rear wheels to compensate for the dead spot in the pedal stroke.....
Oh wait... that would only work at 1:1 gearing...
And then there's biopace...
So, yeah, the more I look at that bike the more I ask myself, "Why?"
Oh wait... that would only work at 1:1 gearing...
And then there's biopace...
So, yeah, the more I look at that bike the more I ask myself, "Why?"
08-19-11 | 10:11 AM
#38
Senior Member
Joined: Mar 2008
Posts: 2,636
Likes: 11
From: Costa Mesa CA
Larger cantilevers, while not light, do offer a smooth ride and (in my opinion) beautiful lines. You'd be surprised how often people look past the old, chipped paint and mention how much they like the looks of this bike:
The frame design of the roundtail bike in question is based on principles that have been applied much more tastefully in the past.
The frame design of the roundtail bike in question is based on principles that have been applied much more tastefully in the past.
08-19-11 | 10:36 AM
#39
FBoD Member at Large
Joined: Aug 2008
Posts: 6,094
Likes: 8
From: Woodbury, MN
Well, we have our answer:
Sponsorship
The rings on the RoundTail™ provide a unique shape with greater surface area. Competitors can offer a more attractive way for sponsors to advertise with corporate messages and logos.
The rings on the RoundTail™ provide a unique shape with greater surface area. Competitors can offer a more attractive way for sponsors to advertise with corporate messages and logos.
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