"PRO" Cycling Discussion

Questions about bike hire abroad and everything light bike related. No off-topic chat please

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KWalker
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by KWalker

If you watch the entire stage he was on normal rings.
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Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

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MattSoutherden
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Joined: Fri Jul 10, 2009 7:22 pm
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by MattSoutherden

Yep. He was on compact round rings when the front mech went awol.

Apparently, his spare bike had a standard 53/39 setup, so he was badly over-geared for the rest of the climb. Seems like a fairly big oversight by the team.
Snacking on carrot sticks - Where did it all go so wrong?
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Finsbury Park CC

by Weenie


plpete
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Joined: Thu Dec 22, 2011 12:39 pm
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by plpete

There are quite a few other riders in the peloton running the Rotor Q Rings that have a much better shifting than O'Symmetric ones. Haven't seen any issues with them. Now that Rotor has released the QXL rings that have an more extreme ovalization (16% vs 10%) they may be a better option.

Pharmstrong
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Joined: Sun Jul 22, 2012 7:17 pm

by Pharmstrong

Ah, they (the rings) looked all black in that tiny gif.

KWalker
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Location: Bay Area

by KWalker

Despite running oval rings myself, I'm not convinced they do anything and there is 0 scientific evidence with valid (i.e. non-SRM) test data with error removed on them. From someone I talked to the Sky trainers and riders determined no perceivable performance difference and got sick of the shitty shifting and ditched em in the off-season (minus Froome and a few TT bikes)
Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

plpete
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by plpete

True, I haven't seen any scientific data showing increased power output but that's not the reason I use them. I like them mainly for when the road points up. For me, that's where they excel. That also seemed to be the case for when we would see them on the pro's bikes.

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stella-azzurra
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Location: New York

by stella-azzurra

stella-azzurra wrote:About his comeback LOL

"It's wrong to say I've retired. I haven't closed the door on cycling and don't know what the future will bring," Petacchi told Gazzetta dello Sport.

"I've got nothing to hide, otherwise I would have just kept quiet. It just didn't make sense to carry on, I haven’t got the right motivation. I felt okay early in the season and only missed out on some results due to making some mistakes. I tried some new things and rode Flanders and Roubaix but then I thought: 'Now what? Ride the Tour? To do what?'

It seems Petacchi no longer wanted the pressure of being a team's nominated sprinter who is expected and paid to win sprints. However, he is interested in a different role.


http://www.cyclingnews.com/news/could-p ... ad-out-man" onclick="window.open(this.href);return false;


Petacchi disappointed after the UCI block his move to Omega Pharma-Quick Step
http://www.cyclingnews.com/news/petacch ... quick-step
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree

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djconnel
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by djconnel

Even if the rings don't improve power but if they simply feel better that alone may justify their use to some riders.

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Rob81
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by Rob81

I tried most of them, from osymetric, Doval and Rotor to the extreme Ogival, all of them provide a different feel but not a power increase, actually no increase at all but a feel of using more effective, longer, arch on which apply a smoother downstroke (from 0 to -20/25° with 0 orizontal crank).
Doval and Osymetric feels, personally (n=1) the best compared to the others; these 2 brands are quite similar in shape too but only the Korean rings have pins and a (normal) thickness that osymetric miss, these last actually being noticeably flexy and out of 2 sets, both were misaligned (lateral chain movement even without load, e.g backpedal).

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Liggero
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by Liggero

there are some scientific articles about these rings, and they show how rotor shape is not good enough compared to osymmetric in terms of performance, shifting precision not taken into account. they mainly bring a more round pedal stroke, not more power directly, but it can help in steep hills, for some riders, not for all. It's a biomechanic change, rather than a direct power output improvement, otherwise everyone would run them, which is not the case... No magic here neither unfortunately...
Happy Trails !!!

KWalker
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by KWalker

I run Rotor Q-Rings simply because I got em for cheap. They feel cool I guess, but I really don't notice at this point. Would never pay full price.

Used the O Sys for a bit and wasn't happy with the shifting or the noise they made and could probably never use them again because of that.
Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

DartanianX
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Joined: Sun Nov 13, 2011 6:00 am

by DartanianX

Sky are going to be looking good in the TTT at the Giro on these!

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ichobi
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Joined: Thu Jan 19, 2012 11:30 pm

by ichobi

edited ^ You beat me to it

And now sir Brad got a new ride

Pinarello Bolide (what's with the name jezuss..) 15% more aero and 5% lighter than the Graal.

Image

http://www.pinarello.com/eng/pina_bolide.php" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;


Too many curves... I prefer Canyon's minimal approach. So Wiggins is still on those "Silly Rings" after all.

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fletch62
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by fletch62

Basso out of Giro.
Not that he would have been a contender.
Might give Cam Wurf a chance to show his wares.

by Weenie


DartanianX
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Joined: Sun Nov 13, 2011 6:00 am

by DartanianX

Wiggins on Di2 training just before the Giro

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