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Subjective thoughts on rolling resistance
Posted: Wed Apr 18, 2007 11:58 am
I know that there's been threads about tyres, but this one could (and I emphasise 'could') be different.
Mike has an interesting link in his signature which has a pretty objective analysis of rolling resistance
for a range of tyres.
My first thought was "Beauty, both the tyres I use (Open Corsa Evo CX and Pro2Race) are up near the top of the table". Then I thought "Hang on, the Attack / Force pair are way down the bottom". All in all, there's plenty of room for some subjective
thoughts, aren't there?
I'll go first.
While I'm pleased to see my two preferred tyres scoring well, I think that there is a pretty big difference in how they feel. The Evo's seem easier to push (and are measurably so accordng to the chart), but the Pro2Race's seem to ride better. Interestingly, the article rated the Pro2Race's as more puncture resistant than the Evo's, but my experience is very much the opposite - after all, I replaced the Michelins because I was sick of punctures and I've only had one with my Vittorias. I hope that that doesn't condemn me to another round of frequent punctures!
Posted: Wed Apr 18, 2007 12:06 pm
Can't comment. They don't have Conti GP4000.
Posted: Wed Apr 18, 2007 12:35 pm
Which Mike where ? The link you provided doesn't work ?
Is there a comparison of what the cost vs rolling resistance ?
Posted: Wed Apr 18, 2007 1:30 pm
MichaelB wrote: Which Mike where ?
'mikesbytes' Mike - in his signature
MichaelB wrote:The link you provided doesn't work ?
It does for me (both here and in Mike's signature). Did you click on it?
MichaelB wrote:Is there a comparison of what the cost vs rolling resistance ?
No. But you can cost the different tyres pretty easily (ProBikeKit
carries nearly all of them).
Posted: Wed Apr 18, 2007 1:37 pm
Yeah the link is fine
Posted: Wed Apr 18, 2007 1:41 pm
Doesn't work for me
Posted: Wed Apr 18, 2007 1:48 pm
Doesn't work for me
Maybe you're too big for effective rolling resistance
Peter's link at the top of this thread worked for me, I haven't clicked on the one in Mike's signature, just assumed they were the same.
Maybe I'm tired but I didn't really get much from that article and it seemed to be suggesting that fatter is better.
Posted: Wed Apr 18, 2007 3:50 pm
I can't even see the link in mikesbytes signature that you are referring to !!!!
I can see the links in red for the Frame Size calc & Parks Tool Repair guide, and his Training Log ibn blue, but that's it.
I am obviously not meant to see it, as it might give me ideas that I can't fathom at the moment......
Posted: Wed Apr 18, 2007 6:08 pm
MichaelB wrote:I can't even see the link in mikesbytes signature that you are referring to !!!!
Burn plenty of Glycogen
Frame Size Calculator.....Park Tools Repair Guides Frame Size Calculator.....Rolling Resistance.....Rolling Performance
Posted: Wed Apr 18, 2007 10:19 pm
'fatter is better'
Absolutely, 531db agrees with this.
The Fellini and Superlite both use Maxxis Detonator tyres in 700 x 28C. These tyres are the same flexible lightweight tyres as the 700 x 23C versions, just wider and taller and have a recommended max pressure of 120 psi.
531db has proven these work with 2 wins, and a number of placings in ACTVCC and Waratah VCC events, and to top it off a second place in a NSW state open road race all on 28C's
'Steel is real'
'Fatter is faster'
'Shifters belong on the downtube'
'Less Gears - More Beers'
'The Sturmenator is coming'
Posted: Wed Apr 18, 2007 11:13 pm
531db wrote:The Fellini and Superlite both use Maxxis Detonator tyres in 700 x 28C. These tyres are the same flexible lightweight tyres as the 700 x 23C versions, just wider and taller and have a recommended max pressure of 120 psi.
Is there much of a weight penalty in the X28c tyres 531?
Posted: Wed Apr 18, 2007 11:25 pm
Mulger bill wrote:
"Is there much of a weight penalty in the X28c tyres 531?"
Very little, there would be a small amount, but it's not obvious to me. I believe the 28C Detonators would be lighter then many 23C's, especially the kevlar belted jobbies.
BTW, the tyres are mounted on Mavic Open Pro or MA2 rims.
A good honest 36 DT SS spokes in the rear and either 28 or 36 in the front depending on the wheel being used.
Posted: Wed Apr 18, 2007 11:44 pm
Thanks 531, I'll look them up when the current ones die.
Would there be any fitting issues on Shimano R500 wheels?
Posted: Thu Apr 19, 2007 8:48 am
I can see and access the Rolling performance link, and see the Rolling restance, but can't get it up.
The interesting thing is the grip level as well.
There is a pair of Schwalbe Ultremo clinchers for $100 on Ebay
at the moment as well !! And the same seller has a pair of Conti GP4000S as well.
Posted: Sat Apr 21, 2007 4:49 pm
Got my first ride on the new conti gp4000's today, at first i thought i didn't have them up to the right pressure and had to check to make sure, on the old tires i could tell when i had to pump them back up over the 100psi because the ride became soft and i couldn't feel every grain of the road surface.
the ride the bike has now is so smoooth and soft! At first i thought there would be a performance trade off in cornering grip but the tires are very surefooted around corners, chalk and cheese compared to the stock set of maxxis slicks the bike came with.
/big silly grin