Home› General Training Discussions

Tires, Crr and the like

William JenksWilliam Jenks
in General Training Discussions

 Wanted to draw this article on the "research" side of Slowtwitch to your attention:

 

http://www.slowtwitch.com/Products/Things_that_Roll/Tires/Fast_Tires_for_2012_-_1_2684.html

 

Curious.... regarding the Evo Corsica that we all settled on last year.  Has anyone had the puncture issues the author mentions?

Anyone tried this Conti GP4000 “S” Clincher?

Comments

  • GeneGene

    I have been riding the Conti 4000 S for a few seasaons now.  I usually put a new set on prior to the A race then use them through the next year or until another A race comes up.  I seem to get 2-4K miles on them before I get a flat.  But then the flats come in bunches (maybee bad luck, maybee the tire is wore out).  I am riding in SoCal where due to the cry weather the streets never get cleaned and a ton of crap builds up.  Overall I am very happy with these tires.  I had been looking into something different and "faster" but hwy change.  I think I'll stick with what works.

  • William JenksWilliam Jenks
    If you're to read that data, the 4000S is not so different "fastness" than the Evo Corsicas that we've been pushing around here as far as I can tell. If there were good data that the two were equally fast but one were more resistant to puncture than the other, I know what I would do. :-)
  • GeneGene

    That was my conclusion.  Based on the minute differences in Crr and the suposed aero advantage of the 4000S ~ Keep rocking the 4000 S.  If it aint broke don't fix it. 

  • coop6coop6
    I use the 4000s. I find them to be a generally flat resistant quality tire. I train on the 4000s or Gatorskins, race on the 4000s. I have a set of wheels that I can't get the 4000s on so I have a set of some other brand on them, can't recall what it is. I've had three flats on those tires already this year.
  • John WithrowJohn Withrow
    I train on the Gatorskins and like them.

    I race on the Vittoria Open Corsa EVO CX II with latex tubes. I only did IMLou and an OLY on them last yr, but didn't have any problems. I'm definitely going to stick wi them.
  • Scott AlexanderScott Alexander
    +1 with John W. Train with gatorskins, race Vittorias w/ Latex (since last year).
  • William JenksWilliam Jenks
    Yeah, I raced on the Vittorias too. Had no issues and they were great as far as I could tell. Just not a huge sample size...only a few hundred miles on them total, including the IM. :-)
  • Tom GlynnTom Glynn
    I bought the Vittorias last year for IM TX. I was too lazy to take them off after the race so I still have them on. No problems. I plan to replace them for this year's race, not because they are worn out, but just part of regular spring maintenance.
  • Jenn EdwardsJenn Edwards
    I've been on the Continental 4000 S for two years now and actually have had zero flats. Probably just my N = 1. Of course on two separate rides with two separate friends on gator skins they each had a flat, go figure!
  • Bob IrwinBob Irwin
    I have trained and raced on the Vittorias with latex tubes for the last two years. I get a new set of both for my most important race of the year. I had my first flat about a month ago on a training ride - so now I actually have butyl tube in the front one.
  • jmoss70jmoss70

    @William - thanks for starting this thread and sharing the link. 

    Last year, before IMCDA, I invested ~$200 in Vittoria tires (2 + spare) and Latex tubes.  I was BARELY able to mount them on my 808s using two tire levers.  I did one 17 mile ride a few days before the race, then broke my foot running and never did the race.  Haven't ridden the Vittoria setup since.  

    Based on what I read I unmounted (which took a hell of a lot of muscle) the Vittorias and easily mounted two new GP4000s with Race Light 700 butyl tubes.  I feel better knowing that if I flat I can for sure get one bead off and change the tube.  I also have a higher confidence in Contis.  I'm willing to shitcan $200 in favor of relibility and ease of use.

  • William JenksWilliam Jenks
    Yeah, I agree that's a really important factor.

    I have Vittorias from last season and they go on ok over my wheels (an older HED and an Open Pro), but I agree that would surely be a tie-breaker!

  • John WithrowJohn Withrow
    @Jim- I'll give you $75 + shipping for your 3 slightly used set of Vittoria Open Corsa's if you want to dump them...
  • Paul HoughPaul Hough
    I'm racing Bonty Aero R4s with latex. Look at the note at the bottom of the SlowTwitch review about the puncture belt. At the St Croix 70.3 last weekend, 10% of the field did not finish due to flats and crashes in the heavy rain. I've never seen so many flats in a race before, and the race recaps on Ironman.com and Xtri.com talk about it. Surprisingly, tubular tires really took it in the shins on this day (female winner Angela Naeth rode the last 6 miles on a tubular flat). It was so bad that I was singing love songs to my tires throughout the race and they did not let me down. Part of the reason, I'm sure, is that I won't race an IM or HIM on tires with more than 500 miles on them. It costs too much to enter these races and then cheap out and use old tires.
  • jmoss70jmoss70

    I'll one up you Paul...I won't race on tires with more than 50 miles on them.  I ride them 2-3X to get the little rubber frays off and make sure I don't have a pinched tube and then I race them.  I'm kind of cuckoo on stuff like that.

Sign In or Register to comment.