Tire pressure

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Tire pressure

Postby bikesRfun » Mon Apr 24, 2017 1:50 am

What tire pressure do you use? Also include your tire size and width and your weight.
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Re: Tire pressure

Postby jasnooks » Mon Apr 24, 2017 4:00 am

Not sure how this is gonna help, but I'll play..

60 rear, 50 front
700x35
215 lbs
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Re: Tire pressure

Postby to the beach » Mon Apr 24, 2017 5:00 am

65 rear, 60 front
26 x 1.95
260 lbs
I don't ride much off road. Packed dirt when I do.
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Re: Tire pressure

Postby bikesRfun » Tue Apr 25, 2017 10:41 am

Off-road
140 lbs
running inner tube
Front 27.5 x 2.25 = 28 psi
Back 27.5 x 2.1 = 31 psi
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Re: Tire pressure

Postby dddd » Wed Apr 26, 2017 6:07 pm

For easier off-road riding, using 29x2" tires mouted on narrow rims, 25psi and I weigh 140lbs.

For more technical riding on 27.5x2.3" tires on FAT i51mm rims, 25psi again is the minimum to avoid pinching the tube over rocks.
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Re: Tire pressure

Postby NYMXer » Thu Apr 27, 2017 8:21 am

Skinny Mtb tire (2.25) usually around 28 and adjust for the terrian. Maybe 30 if rocky, 26 if a little wet
Plus bike tire (3.00) around 18 psi as a starting point
Fat Bike (4.0 and up) start at 8 psi and down to 4 in the snow
23-25 road bike tires 120 psi
28 road bike at 90-100 psi
32-38, 75 - 80 psi (hybrid bike)
Cruiser bike usually 55-60 psi

My general rule is to find a good "normal conditions" pressure and adjust for the terrain. More psi for anything that might raise the risks of a flat like rocks, drop offs, etc and drop 2 psi at a time for slippery conditions.
On the road bikes, it's very simple and rarely deviates but higher psi increase bumps felt at the bars, too low and you risk flats and higher rolling resistance.
Experiment and see what works for you but tire pressure will vary due to rider weight, speed, conditions and tube/tubeless
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Re: Tire pressure

Postby bikesRfun » Tue May 02, 2017 1:54 am

I find this chart to be very close to what I run in my tires. This is for tubeless. For tubes, run a few psi more.
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Re: Tire pressure

Postby dddd » Tue May 02, 2017 6:35 pm

I think that those are good numbers, even for use with tubes if one is reasonably careful. I would get pinch flats right away if I ran the pressure any lower than those numbers though.
I am still running with tubes, and riding in rocky terrain I can just get away with such low pressure and rarely pinch-flat.

And I would say add about ten pounds to your body weight if your bike is a typically-heavy bbb, and maybe a few more pounds if you carry a heavy hydration pack or laden rack, etc., or if you use very light/thinner-walled tires.
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Re: Tire pressure

Postby jasnooks » Tue May 02, 2017 8:50 pm

bikesRfun wrote:I find this chart to be very close to what I run in my tires. This is for tubeless. For tubes, run a few psi more.

What type of riding?
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Re: Tire pressure

Postby bikesRfun » Thu May 04, 2017 1:21 am

Pressure chart is for off-road mountain trail.
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