Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Junior Member
    Join Date
    Aug 2008
    Location
    New Westminster, BC
    My Bikes
    Many...
    Posts
    7
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Vittoria Cross XG Pro, 60 PSI Minimum?

    These came on my new bike and I will be the starting point for cross tires for me. Clincher 32's on Mavic Aksium wheels.

    Tire sidewall says min 60psi max 90psi .

    Many people seem to have tire presure recomendations of 40-50 psi for clinchers depending on the course. Does anyone have any feedback on this combo at lower pressure than 60, and an outcome.

    I expect I will be higher than 40 (as I weight 200#), but 60 seems too high to be the minimum.

    I know getting out and riding will tell me the story but is there a reason for the 60 psi minimum that I should be concerning myself with?
    Last edited by kklaus; 08-31-08 at 10:18 AM.

  2. #2
    fix
    fix is offline
    yeahh, becky fix's Avatar
    Join Date
    Apr 2006
    Location
    DC
    My Bikes
    1990 Kotter Albuch, 2005 Empella Spaar Select Cross, 2007 Ridley Aedon
    Posts
    1,394
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You should be fine. You'll see soon enough; if they're rolling off the rims in corners or you get pinch flats, you might want to switch.

    I weigh 150 and ride light, and I've run Michelin Muds down in the 25 psi range without problems.
    soh-CAh-T-oa-meter 0 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ X ~ ~ pi

  3. #3
    Team Beer Cynikal's Avatar
    Join Date
    Apr 2004
    Location
    Sacramento CA
    My Bikes
    Too Many
    Posts
    5,773
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Also, remember to use some talc or something similar on your tubes. This will help to avoid pinch flats.
    I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC

  4. #4
    Senior Member
    Join Date
    May 2007
    Location
    Marion, IA
    Posts
    64
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I got a set of these last year, and I was skeptical about the high pressure rating as well, but I like to ride my tires a little harder than most. I tried once to run them down around 45 and when I did that it felt like they were going to roll off the rims when cornering hard, so back up to 60 they went. Might have been mental and I need to try again this year on one of my training rides, but that was during a pre-ride for a race, so wasn't going to mess around with it.

  5. #5
    Out of Commission OC Roadie's Avatar
    Join Date
    Mar 2005
    Location
    SoCal
    My Bikes
    Felt FC, S-Works Roubaix, Epic Comp, Cyfac Proxidium
    Posts
    2,272
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    These came stock on my new bike and I've been riding them at 45-50 psi, I weigh ~170. I haven't felt like they were going to roll off the rim, I tried them at 60-65, but they were too harsh and I was sliding around a lot in soft stuff.
    If you don't have anything nice to say about anybody, then come sit next to me.

  6. #6
    Senior Member
    Join Date
    Aug 2006
    Posts
    133
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    we're talking about the diamod tread vittorias, right? i raced one in the rear last year at ~35 psi, never had a flat or problem, and this season riding one in front at ~30-35 psi has not been a problem, either - no flats, no tires coming loose from the rim, anything.

  7. #7
    Senior Member
    Join Date
    Jul 2007
    Posts
    2,003
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Recommended pressures are always conservative.

  8. #8
    Senior Member
    Join Date
    May 2007
    Location
    Marion, IA
    Posts
    64
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ok on my training ride this week I set them to about 50 and they felt good, so must have been a mental thing last year. Next weekend is the first race of the year so I will report back how they worked in the race.

  9. #9
    big ring MIN's Avatar
    Join Date
    Mar 2007
    Location
    philadelphia
    Posts
    5,839
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've run the XNs at 30psi and I believe they are the same casing, different tread.

  10. #10
    Junior Member
    Join Date
    Aug 2008
    Location
    New Westminster, BC
    My Bikes
    Many...
    Posts
    7
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks everyone.
    I have been riding them and using lower presures each time.
    I am at 45 rear 40 front and no problems yet.

    I think I only need some new brakepads and I am set for some races.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •