Results 1 to 28 of 28
  1. #1
    bland
    Reputation: m77ranger's Avatar
    Join Date
    Jan 2009
    Posts
    1,289

    New question here. Tire help. (fast response plz)

    My instagram told me it was cold and i want to have the right setup for the new AZ cold we got (global warming my b*tt.) I know that you should fill your petrol tank when its cold because cold gas is more dense than hot gas and you get more bang for your bux. I know that air is gas so its more dense in my tires right now. Is there some equation for how much more air I need to put in my tires?

    I'm running a 2.5 minion up front and a two four ardent in back both tubeless STANS

    Make it quick nerds I'm going for a ride as soon as my hydration bladder thaws out.

  2. #2
    mtbr member
    Reputation: Casual Observer's Avatar
    Join Date
    Jan 2004
    Posts
    9,193
    Quote Originally Posted by m77ranger View Post
    My instagram told me it was cold and i want to have the right setup for the new AZ cold we got (global warming my b*tt.) I know that you should fill your petrol tank when its cold because cold gas is more dense than hot gas and you get more bang for your bux. I know that air is gas so its more dense in my tires right now. Is there some equation for how much more air I need to put in my tires?

    I'm running a 2.5 minion up front and a two four ardent in back both tubeless STANS

    Make it quick nerds I'm going for a ride as soon as my hydration bladder thaws out.
    ROUND!!!!!!

    (Sorry, I didn't read your post, but saw you wanted a fast response. Good luck with your search.)
    Nobody gives a s#$t you singlespeed.

  3. #3
    SamuraiBunnyGuy
    Reputation: longhairmike's Avatar
    Join Date
    Oct 2009
    Posts
    2,573
    a full gas tank leaves less room for condensation to form on the tank walls which ultimately ends up as water being injected into your engine

  4. #4
    I Tried Them ALL... Moderator
    Reputation: Cayenne_Pepa's Avatar
    Join Date
    Dec 2007
    Posts
    5,936
    28/front - 24/rear....go ride!
    "The ONLY person who needs to race.....is the entrant"

  5. #5
    mtbr member
    Reputation: tysonnemb's Avatar
    Join Date
    Jan 2010
    Posts
    1,079
    Make sure you make the switch from summer air to winter air. I won't make THAT mistake again...
    “Think of bicycles as rideable art that can just about save the world.”
-Grant Petersen

  6. #6
    bland
    Reputation: m77ranger's Avatar
    Join Date
    Jan 2009
    Posts
    1,289
    Quote Originally Posted by Zachariah View Post
    28/front - 24/rear....go ride!
    I should have made it clear, I ride a 26er. I don't fall for trick marketing.

  7. #7
    How much further ???
    Reputation: Douger-1's Avatar
    Join Date
    Jan 2010
    Posts
    2,370
    I dont get it ....
    “Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did." Mark Twain

  8. #8
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
    Join Date
    Dec 1998
    Posts
    48,307

    Tire help. (fast response plz)

    Quote Originally Posted by m77ranger View Post
    I should have made it clear, I ride a 26er. I don't fall for trick marketing.
    Then use 26psi f&r, desert and winter specific air.
    mtbtires.com
    The trouble with common sense is it is no longer common

  9. #9
    mtbr member
    Reputation: RajunCajun44's Avatar
    Join Date
    Aug 2012
    Posts
    2,553
    You should run the same psi whether its cold or warm, I think what you are referring to is that as the temperture drops, so does your pressure (for the same amount of air).... I think the natural drop is something like 1psi per 10 degrees F.

    Goodyear Corporate | Newsroom | News Releases | As Temperature Drops, So Does Tire Inflation

  10. #10
    SCRUBDUNKER
    Reputation: razardica's Avatar
    Join Date
    Sep 2010
    Posts
    301
    Just put 40 in both and let your suspension smooth the ride out.

  11. #11
    mtbr member
    Reputation: cstem's Avatar
    Join Date
    Jan 2006
    Posts
    2,842
    more importantly, you should ensure that you have the proper air for your tire. If it was made in Taiwan, you need a Taiwan floor pump. Contrary to popular belief, Italian pumps cannot make Taiwanese air. For that matter, Italians are pretty much known not to work period.
    Vassago Cycles, Shadetree Bikes, Flat Tire Bikes, Galfer Brakes USA

  12. #12
    bland
    Reputation: m77ranger's Avatar
    Join Date
    Jan 2009
    Posts
    1,289
    Thanks for the help. I didn't really understand a most of it so I'll just go to the shop and do what ever they say.

  13. #13
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    194
    pV=nRT

  14. #14
    mtbr member
    Reputation: metalaficionado's Avatar
    Join Date
    Aug 2012
    Posts
    1,982
    do nothing.

    less expansion at colder temps will give you more traction in the snow/ice, plus the rubber is less compliant in the cold so it should flex less.

    pulled this out of my ass 2 seconds ago

  15. #15
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
    Join Date
    Dec 1998
    Posts
    48,307

    Tire help. (fast response plz)

    Quote Originally Posted by metalaficionado View Post
    do nothing.

    less expansion at colder temps will give you more traction in the snow/ice, plus the rubber is less compliant in the cold so it should flex less.

    pulled this out of my ass 2 seconds ago
    Smart ass.
    mtbtires.com
    The trouble with common sense is it is no longer common

  16. #16
    Si vales, valeo.
    Reputation: Warshade's Avatar
    Join Date
    Jun 2006
    Posts
    277
    If it's all the same to you, then I must recommend NOT (I repeat, DO NOT do this!) putting the Clearance Summer Air in your tires, as I once did this, and when I was riding I got a ticket from the park ranger saying that it was a fire hazard. He let me off easy by only taking my bike, gear and all the money in my wallet, but he said next time he would even kick me in the jimmy!! Consider yourself warned!!

    But on a more serious note, if it were me, I would just do it, because you never know when they might tell you otherwise, and that would be terrible! Remember??
    "An inconvenience is an adventure wrongly considered." G.K. Chesterton

  17. #17
    mtbr member
    Reputation: GR1822's Avatar
    Join Date
    Jun 2009
    Posts
    2,087
    Quote Originally Posted by MtbAZ44 View Post
    You should run the same psi whether its cold or warm, I think what you are referring to is that as the temperture drops, so does your pressure (for the same amount of air).... I think the natural drop is something like 1psi per 10 degrees F.

    Goodyear Corporate | Newsroom | News Releases | As Temperature Drops, So Does Tire Inflation
    *Sigh*
    There's one in every group. İ

  18. #18
    mtbr member
    Reputation: RajunCajun44's Avatar
    Join Date
    Aug 2012
    Posts
    2,553
    Quote Originally Posted by GR1822 View Post
    *Sigh*
    There's one in every group. İ
    I have a feeling this thread is a farse.. and I am the idiot for not knowing that...

  19. #19
    mtbr member
    Reputation: cstem's Avatar
    Join Date
    Jan 2006
    Posts
    2,842
    Yeah, LBS air is the best. That online stuff could be a blem and not have a warranty. Besides, is that online store gonna help when some of your precious air escapes?
    Quote Originally Posted by m77ranger View Post
    Thanks for the help. I didn't really understand a most of it so I'll just go to the shop and do what ever they say.
    Vassago Cycles, Shadetree Bikes, Flat Tire Bikes, Galfer Brakes USA

  20. #20
    mtbr member
    Reputation: chipolopolo's Avatar
    Join Date
    Dec 2008
    Posts
    694
    On a similar note, does anyone else have this issue. You flat, put in a tube, fill it with a Co2. Next day, flat. Fill with air compressor, fine??? Happens VERY frequently on my road bike.
    Drinkin the S-Works Kool-aid

  21. #21
    mtbr member
    Reputation: az3075's Avatar
    Join Date
    Aug 2011
    Posts
    130
    You guys still use air and CO2? I've switched to methane long ago. If you have a leak, you'll know.

  22. #22
    mtbr member
    Reputation: metalaficionado's Avatar
    Join Date
    Aug 2012
    Posts
    1,982
    Quote Originally Posted by az3075 View Post
    You guys still use air and CO2? I've switched to methane long ago. If you have a leak, you'll know.
    I fill with it hydrogen, with the buoyancy your tires float over the rocks and I can bunny hop downed trees.

  23. #23
    mtbr member
    Reputation: AZ Stumpy's Avatar
    Join Date
    Nov 2008
    Posts
    127
    A mix of 78% Nitrogen and 21% Oxygen works best in the winter. I can get it free through work, too.

  24. #24
    Si vales, valeo.
    Reputation: Warshade's Avatar
    Join Date
    Jun 2006
    Posts
    277

    Re: Tire help. (fast response plz)

    Quote Originally Posted by AZ Stumpy View Post
    A mix of 78% Nitrogen and 21% Oxygen works best in the winter.
    Depends on the humidity...

    Sent from my HTC One using Tapatalk
    "An inconvenience is an adventure wrongly considered." G.K. Chesterton

  25. #25
    mtbr member
    Reputation: metalaficionado's Avatar
    Join Date
    Aug 2012
    Posts
    1,982
    Quote Originally Posted by AZ Stumpy View Post
    A mix of 78% Nitrogen and 21% Oxygen works best in the winter. I can get it free through work, too.
    10% of particulate if you live in Phoenix, good for plugging smaller leaks.

  26. #26
    Meatbomb
    Reputation: Phillbo's Avatar
    Join Date
    Apr 2004
    Posts
    5,613
    I have a lovely bunch of coconuts

  27. #27
    mtbr member
    Reputation:
    Join Date
    Apr 2011
    Posts
    144
    You have to fill your winter pumps with air from the first Haboob Haboob - Wikipedia, the free encyclopedia (you may need two dedicated pumps for this) It is critical to have right mix of dirt and organic matter and valley fever spores. The valley fever feeds on the organic matter and combined with the other non organic Haboob material creates the perfect tubeless seal without any Stans required.

  28. #28
    Si vales, valeo.
    Reputation: Warshade's Avatar
    Join Date
    Jun 2006
    Posts
    277
    Quote Originally Posted by Old ROMPer View Post
    You have to fill your winter pumps with air from the first Haboob Haboob - Wikipedia, the free encyclopedia (you may need two dedicated pumps for this) It is critical to have right mix of dirt and organic matter and valley fever spores. The valley fever feeds on the organic matter and combined with the other non organic Haboob material creates the perfect tubeless seal without any Stans required.
    I believe that you've been severely misinformed. Anyone with even a lick of sense knows that winter pumps aren't compatible with haboob air. What you need is a summer-to-winter conversion tank, or a summer pump & a winter pump, (but this method is definitely lacking in consistency when compared to the conversion tank method). Using only a winter pump, (even if you are using two of them), will only net you a result of a trip to the hospital.
    "An inconvenience is an adventure wrongly considered." G.K. Chesterton

Similar Threads

  1. Front tire and steering response
    By Montster in forum Fat bikes
    Replies: 49
    Last Post: 01-01-2013, 11:02 AM
  2. How can I tell if my tire is a fast roller?
    By Cycling Cyco in forum Wheels and Tires
    Replies: 31
    Last Post: 09-16-2012, 10:27 AM
  3. What makes a tire fast?
    By fixgeardan in forum Wheels and Tires
    Replies: 6
    Last Post: 04-18-2012, 11:38 AM
  4. Max. Tire width on Response?
    By Joey47 in forum Diamondback
    Replies: 0
    Last Post: 09-02-2011, 12:30 PM
  5. Fast Cheq 40 Fat Tire set-ups - let's see em...
    By single speed kid in forum Minnesota, Wisconsin
    Replies: 3
    Last Post: 02-08-2011, 04:08 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
  •