Boonen uses great big fat tubular tire in Paris-Roubaix

http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny: http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!
--D-y

On Apr 10, 11:24*pm, "
wrote:
http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny: http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!
--D-y

25mm wide rim and a 35mm cross-section tyre are the limits in UCI-
sanctioned events. 28mm tubs have been pretty much standard for
years despite manufacturers offering "Roubaix" tyres in 24,25 or 26mm

wrote:
http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny:http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!

I'd be interested in a detail front photo of the tire's clearance at the
fork blades, and a top view of the clearance at the chainstays.

--
- Frank Krygowski

Frank Krygowski wrote:
wrote:
http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny:http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!

I'd be interested in a detail front photo of the tire's clearance at the
fork blades, and a top view of the clearance at the chainstays.


Paris Roubaix machines are not like other race bikes:
http://ukcyclesport.com/images/stori...ike/prbx15.jpg

click 'next photo' to see the series he
http://www.cyclingnews.com/features/...roubaix/168515

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

B's psychotic adviser gave good advice und B lucked out at the advanced age of uh ?

the diversity in tuning for advantage isnot required for long races of smiling pelotoners cruising thru fields of sunflowers..

to be cynical.

you see if guns kill people then...

On 11/04/12 12:01, Frank Krygowski wrote:
wrote:
http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny:http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!

I'd be interested in a detail front photo of the tire's clearance at the
fork blades, and a top view of the clearance at the chainstays.


Tyre clearance at forks.

http://www.cyclingnews.com/features/...roubaix/168530

--
JS

On 11/04/12 12:01, Frank Krygowski wrote:
wrote:
http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny:http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!

I'd be interested in a detail front photo of the tire's clearance at the
fork blades, and a top view of the clearance at the chainstays.


Seat stay clearance.

http://www.cyclingnews.com/features/...roubaix/168560

--
JS

On Apr 10, 9:29*pm, AMuzi wrote:
Frank Krygowski wrote:
wrote:
http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny:http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!

I'd be interested in a detail front photo of the tire's clearance at the
fork blades, and a top view of the clearance at the chainstays.

Paris Roubaix machines are not like other race bikes:http://ukcyclesport.com/images/stori...ike/prbx15.jpg

click 'next photo' to see the series hehttp://www.cyclingnews.com/features/...re-bikes-from-...

Campy Barcelona rims? Ahhh... a real bicycle wheel rim, tubular,
double eyelets and all, nice to see, even if the winners were (medium-
light) deep-dish carbon.

Yup, at least fairly close to the roll-off, P-R was looking like a mud
race was in the offing. Meaning, horses for courses and yards of
clearance or, as on the coal carts of legend, you won't be able to
roll when the wheels won't go!

I wonder if they would have still used those big fat tires (yes!) but
still pumped up to only 61 lbs (front, 62.5 rear g, quoted for
Boonen), if they expected to encounter USO's (Unidentified Sunken
Objects)?

One point being, those bikes are used once, by and large, and put away
until next year or "sent off" in consideration of next year's latest-
elastomer-enhanced-greatest.
Even in Euro point-to-point road races, huge tires and Grand Canyon
clearances are not needed and American parking lot racers usually need
that kind of stuff even less yet.

Everything is tailored to survival over the cobbles, to state the
obvious. I loved Phil's comment to the effect that Boonen was riding
tires that no racer would ordinarily be caught dead on, even for
training. Amen, Brother Phil!
Hell of a ride, no flats and no gloves, either.
--D-y

wrote:

Even in Euro point-to-point road races, huge tires and Grand Canyon
clearances are not needed and American parking lot racers usually need
that kind of stuff even less yet.

I can appreciate that there's a limit to how much tire width and
clearance is needed for most racing. What I don't understand is the
advantage of providing only very narrow clearance for only narrow tires.
Why not give more, just to add to a bike's versatility?

Perhaps there's a tiny aerodynamic advantage at the front fork, but it
would never be significant except perhaps on a time trial bike. In the
rear, I see no practical advantage at all.

No practical advantage for the rider, that is. For the manufacturer, it
probably helps sell bikes to those guys who think "impractical" means
"fast."

--
- Frank Krygowski

On Apr 10, 6:24*pm, " wrote:
http://www.roadbikeaction.com/conten...News/2012/Race
%20News/Paris%20Roubaix/TB%20frntwheel.jpg
or Tiny: http://tinyurl.com/7vhbrfe

And no flats, either.
Plus, reported to run about 61 psi in front, a little more in the
back.

I thought you couldn't put a big tire on a modern race bike?!?!
This bears more investigation!
--D-y

To quote a guy named Cataño, "It disproportionately steams my clams
that specialized is going to trumpet this as a victory for zertz,
rather than the obvious fact that it's a victory for low-psi, fatty
tubulars made by some dude in a french barn."