Results 1 to 10 of 10

Thread: Tire Pressure?

  1. #1
    mtbr member
    Reputation:
    Join Date
    Aug 2013
    Posts
    82

    Tire Pressure?

    What tire pressure are you CX bike riders running on trail?

    Airing up for pavement?

    Thanks

  2. #2
    mtbr member
    Reputation: Eric Malcolm's Avatar
    Join Date
    Dec 2011
    Posts
    548
    Hey Tinman, that's a big question. 33mm or 35mm or more? Tubular or clincher? Fine tread or Knarly?

    I use Schwable 35mm Rocket Ron (front) & Racing Ralph (rear) on pavement and gravel @ 50psi and 55psi respectively. How you want to balance the Front/rear ratio makes a difference too.

    Eric
    Last edited by Eric Malcolm; 08-22-2013 at 03:39 PM.
    If I don't make an attempt, how will I know if it will work?

  3. #3
    mtbr member
    Reputation:
    Join Date
    Aug 2013
    Posts
    82
    Thanks Eric,
    That (50-55psi) gives me a good idea with out excessive detail. I see most those cx tires rate at 70-100. I have the hots for a cx bike but, besides cx I would like clearance for 45's (monster cross)............I will likely have to give somewhere

  4. #4
    Kilted Cyclist
    Reputation:
    Join Date
    Jan 2004
    Posts
    206
    I don't bother airing up pavement

  5. #5
    mtbr member
    Reputation: jkirkpatri's Avatar
    Join Date
    Sep 2008
    Posts
    1,231
    At 250lbs, I air my tires up to 60psi, but no higher. 2012 Jake the Snake stock setup.

  6. #6
    mtbr member
    Reputation: AlexCuse's Avatar
    Join Date
    Nov 2011
    Posts
    943
    Trail 40 or 45
    Road/gravel 65ish
    Race courses 30-45

    Tires usually 32s, I weigh 225ish
    Yeah I only carry cans cause I'm a weight weenie.

  7. #7
    more skier than biker
    Reputation:
    Join Date
    Nov 2006
    Posts
    1,779

    Tire Pressure?

    I weigh about 165 lbs, am running 35c clinchers, set up tubeless, and am around 28 psi front and rear. Sometimes 25 psi.

    Edit: Sorry just reread the OP. i use the above pressures for racing. For trail/training/singletrack i air up to 30-35 to minimize chance of burping or rim strikes on rocks since i'm usually farther away from help if needed.

  8. #8
    mtbr member
    Reputation: Poncharelli's Avatar
    Join Date
    Jan 2005
    Posts
    2,200
    I ran Clement PDX 32mm on a Ridley X-fire disk last year, with tubes filled with Stans.

    I weigh about 165 also and raced them 40 psi rear, 35 psi front (many of our race courses integrate trail). One course was high speed over rocks and I pumped them up 5 psi more. Didn't pinch flat but many others did.

    I'll pump them up to 50 psi or so if I'm bike commuting the CX on pavement only.
    Head Coach, Ben Lomond HS MTB Team
    www.utahmtb.org
    Cycling Team and local Club:
    http://www.roostersbikersedge.com/

  9. #9
    mtbr member
    Reputation: crossracer's Avatar
    Join Date
    Jun 2004
    Posts
    417

    Tire Pressure?

    I run conti 700x43mm tires, knobbies. About as large as my bike will fit. Off road I run maybe 65-70 . I'm about 210 so that's a balance between traction and snakebites

    Bill

  10. #10
    mtbr member
    Reputation:
    Join Date
    Oct 2011
    Posts
    452
    Quote Originally Posted by Tinman View Post
    Thanks Eric,
    That (50-55psi) gives me a good idea with out excessive detail. I see most those cx tires rate at 70-100. I have the hots for a cx bike but, besides cx I would like clearance for 45's (monster cross)............I will likely have to give somewhere
    I run 700x40 Schwalbe Mondials tubeless and run 28f/30r on and off pavement:
    - DSCF1445

    Originally I ran them with tubes and at even the lowest recommended pressure (50-85psi) they were too hard, eventually dropped to around 35 psi before going tubeless.

Similar Threads

  1. Tire Pressure 101
    By RideStrong in forum XC Racing and Training
    Replies: 59
    Last Post: 08-23-2013, 10:28 AM
  2. Tire Pressure
    By gunner.989 in forum 27.5 - 650b
    Replies: 8
    Last Post: 05-08-2013, 10:11 AM
  3. Tire Pressure
    By Bobcanride in forum Endurance XC Racing
    Replies: 11
    Last Post: 07-13-2011, 08:18 AM
  4. Tire Pressure
    By AllisonWunderland in forum Beginner's Corner
    Replies: 6
    Last Post: 06-20-2011, 06:49 AM
  5. tire pressure
    By tman152 in forum Beginner's Corner
    Replies: 9
    Last Post: 04-14-2011, 05:54 PM

Posting Permissions

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