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Thread: Air pressure

  1. #1
    Chi-Chi Monger *WildHare*'s Avatar
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    Air pressure

    How much are you running? It's been awhile since I got on my MTB...Felt pretty slippery last weekend and I'd swear I usually run about 42 psi front and rear...Or was it 32 Anyway, How much do you weigh, what kind of terrain, etc..for your particular tire pressure?
    When it's good it's really good...And when it's bad I go to pieces - David Bowie

  2. #2
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    Tire pressures are embossed on the side wall of the tire. It is best to use the higher number if you are riding on the roads --that is if it gives a choice, such as "Inflate to 40/65 pounds" If not, use the number listed for max pressure. If you are heavy, you could exceed this max by 5/10 pounds and still be OK.
    ljbike

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    Wood Licker Maelstrom's Avatar
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    Weight - 260

    Street - 60psi (very rarely)
    Single track/trails - 40 - 50 psi
    Trials and tricks - 25 to 30

    Depends on my days and what I feel like doing. As you can see I spend a lot of time with a pump and pressure gauge.

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    Senior Member mechBgon's Avatar
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    I'm about 165 pounds, ride XC-style stuff, and would prefer to run about 35-40 psi front, 40-45psi rear. However, when I get into rocks, this earns me pinch flats unless I have, say, 2.3" tires. And 2.3" tires have some clearance issues on the rear of my particular setup, not to mention that it's hard to find light XC tires of that size. So I end up more like 45-50 front, 50-55 rear if I use 2.1" tires.

  5. #5
    Canadian eh?
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    My tires are nuts for grip. I used them through the winter. I run them at 80PSI all the time. Road, or XC. The label says 35-80 PSI. They are 2.1" in the front and 2.2 in the rear. I drop the pressure to 60 when its hot outside.

  6. #6
    NCAA - DUAL CHAMPIONS! a2psyklnut's Avatar
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    I have a pair of WTB Velociraptors that I run about 60 - 65 for most singletrack. I weight 225 to 230 and the trails are mostly dry with some rocks and roots.

    If it's wet out, I'll drop pressure about 10 lbs.

    Road, I pump them up to about 125! On my road bike of course!

    L8R
    "Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
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  7. #7
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    wat'd PSI should i be running in my Mosquito Hutchingsons?:confused: Cuz im only 85 pounds

  8. #8
    NCAA - DUAL CHAMPIONS! a2psyklnut's Avatar
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    Only 85 lbs ????!!!!!!

    Heck, at only 85 you don't need tubes, just put the tires on the rim and ride! Just Kidding!

    You could probably get away with as little as 30 psi and do alright!

    Any less than that and the bike may feel too Squishy!

    L8R
    "Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
    "Your Bike Sucks" - Sky Yaeger

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    I ride 60 PSI on the road and 40 in the moutains
    That seems to work the best for me.

    Matt

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