Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5
  1. #1
    Senior Member Lspade's Avatar
    Join Date
    Jul 2009
    Location
    Chaska, MN
    My Bikes
    2013 Specialized Tarmac
    Posts
    111
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Is it *dangerous* to use CX tubulars on fast and rough mtb trails?

    I do not own an MTB and have been using my CX bike for trail riding. Most trails in my area are hard pack with some roots and a few rock gardens.

    - I have been running 60psi on 700x33 clinchers with no flats on MTB trails.
    - I run 45 psi during cx races with no issues.
    - I dismount and run the big rock gardens when riding mtb trails.
    - I tried riding at 45psi on the mtb trails and although it felt 1000000 times more awesome I got a pinch flat.

    I can switch to a tubular setup for under $500 which would be great for racing but I am not sure how it would hold up to riding my local mtb trails. There are very fast downhill rutted sections that I fear could roll a tubular off the rim but I have never used tubulars before so I need your opinions. Can I use 700x33 tubulars at 40psi to cure my pinch flats while trail riding or is that dangerous?

  2. #2
    Have bike, will travel Barrettscv's Avatar
    Join Date
    Feb 2006
    Location
    Edwardsville or Chicago Illinois
    My Bikes
    Peugeot PX10, Serotta Nova X, Simoncini Cyclocross Special, Origin8 monstercross, Pedal Force CG2 and CX2
    Posts
    9,573
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    One of the issues with tubulars is the stability of the glue as the rims heat-up from prolonged braking. That may not be an issue unless you have routes with long hills.

    Beyond that, It's mostly an issue of rider skill.

    I would try a clincher 700x35 or 38 (if it will fit) before spending money on new rims and tires.
    Last edited by Barrettscv; 11-20-13 at 01:50 PM.
    When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.

  3. #3
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    5,062
    Mentioned
    59 Post(s)
    Tagged
    0 Thread(s)
    IDK, blind guess not practical, get a helmet cam , let's see the route ..

    wear more Protective gear for when you Do go Down.

  4. #4
    or tarckeemoon, depending marqueemoon's Avatar
    Join Date
    Dec 2005
    Location
    the pesto of cities
    My Bikes
    Davidson Impulse, Merckx Titanium AX, Bruce Gordon Rock & Road, Cross Check custom build, On-One Il Pomino, Shawver Cycles cross, Zion 737, Mercian Vincitore, Brompton S1L, Charge Juicer
    Posts
    7,020
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'd say you are no more likely to roll a tubular than you would be in a race, but who wants to mess with a punctured cross tubular in the middle of the woods?

    Either spend that $500 on a cheap mountain bike or run higher pressure/bigger tires.

    Tubulars are awesome for racing though, and IMO that is reason enough to make the switch.

  5. #5
    The Brutally Handsome Sizzle-Chest's Avatar
    Join Date
    Jun 2007
    Location
    Siberia
    Posts
    499
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by marqueemoon View Post
    who wants to mess with a punctured cross tubular in the middle of the woods?
    This! The one time I used my tubulars on a long trail ride I couldn't shake the feeling that I would flat and have to walk out. It's just not worth the risk unless you're willing to carry a spare tub and be prepared for a sketchy ride after mounting it.

    Another option to consider is converting your wheelset to tubeless, which would allow you to run lower pressure and you could carry a tube with you incase you burp or flat.
    "What kind of bike? I don't know, I'm not a bike scientist."

Posting Permissions

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