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New to me bike & 27.5 tire pressure

Old 05-07-18, 09:28 PM
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gorillimo
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New to me bike & 27.5 tire pressure

i all-
Just picked up a Trek 27.5er. Tires were at 40 psi. Felt kinda hard. What are ya'll running in them? Tires are Bontrager 2.2........
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Old 05-08-18, 02:34 AM
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Pressure is a LOT more dependent on tire WIDTH than diameter. Unless it's a "Plus" bike, use whatever pressure you'd use on a similar width 26" or 29er, and and adjust from there.

Disclaimer: Tubeless tires tend to have thicker sidewalls and may ride harsher for the same pressure b/c of that.
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Old 05-08-18, 07:58 AM
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Is it tubeless?
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Old 05-08-18, 08:47 AM
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my 29'ers are 2.35 wide and i run 35psi, they feel fine at that.
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Old 05-08-18, 11:20 AM
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gorillimo
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Tubed tires. Did find s test where the reviewer ran them as low as 18 psi without a problem. Guess Iíll jusr drop them a bit at s time until it feels right. They sure roll, compared to my former 26er.
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Old 05-09-18, 12:41 PM
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How heavy are you?

And to echo another comment: 27.5" vs 26" diameter is not really relevant to this. If you know what you like for a similar width 26" tire, go with that to start.
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Old 05-10-18, 06:20 AM
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I run about 25psi with tubes, my riding buddy runs about 20psi tubless. If I am going to be riding extended time on hardpack or pavement I bump mine up to 35psi.
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Old 05-10-18, 07:03 AM
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Discussing tire pressure without including rider weight is like discussing shoe size without including how big your feet are.
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Old 05-10-18, 07:04 AM
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Down to 30 tonite. Much better! Guy was running 40+ when I got it. No wonder he was selling it to go fs! Iíll try 25 next.....
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