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News in March
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| Spilak23 |
Posted on 30-03-2013 14:34
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Team Leader
Posts: 7357
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PCM$: 200.00
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smart move by Evans/BMC
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| The Mountain Lion |
Posted on 30-03-2013 15:26
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Under 23
Posts: 99
Joined: 07-03-2007
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Evans still has TDF as his main objective, and he says, that he will only ride the Giro to get into shape.
https://www.bmcracingteam.com/index.ph...00c1ab2d11 |
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| Ad Bot |
Posted on 25-11-2024 09:38
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Bot Agent
Posts: Countless
Joined: 23.11.09
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| Aquarius |
Posted on 30-03-2013 17:13
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Grand Tour Specialist
Posts: 5220
Joined: 29-11-2006
PCM$: 200.00
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A bit of a technical question...
It seems this season most pros are using 25 mm wide tyres, whilst 23 used to be the standard.
When I was half my age ( ), the trend was rather to have the most thin tyres (I've had 19 mm ones, maybe 18, not sure), to minimize the surface of contact with the ground (grip is no an issue on dry floor with the power level of cyclists, no matter how good).
Any idea where that trend comes from, or more generally why ?
Edited by Aquarius on 30-03-2013 17:14
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| dienblad |
Posted on 30-03-2013 17:28
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Classics Specialist
Posts: 3772
Joined: 10-09-2010
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Aquarius wrote:
A bit of a technical question...
It seems this season most pros are using 25 mm wide tyres, whilst 23 used to be the standard.
When I was half my age ( ), the trend was rather to have the most thin tyres (I've had 19 mm ones, maybe 18, not sure), to minimize the surface of contact with the ground (grip is no an issue on dry floor with the power level of cyclists, no matter how good).
Any idea where that trend comes from, or more generally why ?
I believe it has something to do with the rolling resistance (?), don't know if it is the correct word. Also the chance to get a puncture should be lower.
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| Aquarius |
Posted on 30-03-2013 17:33
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Grand Tour Specialist
Posts: 5220
Joined: 29-11-2006
PCM$: 200.00
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Nah, rolling resistance increases proportionally to the surface of contact between the tyre and the ground (road), so a wider tyre increases it, and marginally increases the probability of a puncture too.
I'd say it increases comfort, which even pros must appreciate, but it's always been case with wider tyres, so why suddenly this year ? There must be something else I can't figure out.
Edited by Aquarius on 30-03-2013 17:33
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| The Mountain Lion |
Posted on 30-03-2013 17:44
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Under 23
Posts: 99
Joined: 07-03-2007
PCM$: 200.00
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Aquarius wrote:
Nah, rolling resistance increases proportionally to the surface of contact between the tyre and the ground (road), so a wider tyre increases it, and marginally increases the probability of a puncture too.
I'd say it increases comfort, which even pros must appreciate, but it's always been case with wider tyres, so why suddenly this year ? There must be something else I can't figure out.
Can it be due to the poor weather conditions?
It has been more cold and wet this year in Europe. |
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| felix_29 |
Posted on 30-03-2013 17:45
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Classics Specialist
Posts: 3054
Joined: 08-08-2009
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25mm tires together with wide rims are the most aerodynamic setup (according to wheel-producers) and for some reason they are said to have a better rolling resistance. I can't exactly explain why, but i think i has to do with the road surface which isn't smooth and a wider tire with less pressure will need less energy to adapt to the roughness.
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| CrueTrue |
Posted on 30-03-2013 23:27
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Tour de France Champion
Posts: 29989
Joined: 20-10-2006
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Just a minor correction to this - says he doped from 2003 to 2008. |
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| issoisso |
Posted on 01-04-2013 20:15
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Tour de France Champion
Posts: 22918
Joined: 08-02-2007
PCM$: 200.00
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CrueTrue wrote:
Just a minor correction to this - says he doped from 2003 to 2008.
Just waiting for him to go "April Fools! I've always been clean"
The preceding post is ISSO 9001 certified
"I love him, I think he's great. He's transformed the sport in so many ways. Every person in cycling has benefitted from Lance Armstrong, perhaps not financially but in some sense" - Bradley Wiggins on Lance Armstrong
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