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tire pressure ?'s

Old 05-07-16, 01:27 PM
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tire pressure ?'s

A buddy of mine races his bike and gets stuff from raffles all them time, he gave me some Origin8 Elimin8tor folding tires in a 700x28. With the weight of me and the bike it's roughly 230lbs and a tire pressure calculator says I need 104psi in the rear but the max rating on the tire is 87psi. 87psi just seems way to low. Could I safely add the extra 20psi?
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Old 05-07-16, 01:45 PM
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You won't need anywhere near 104psi in the back tire. I runs 28s exclusively, and have never run more than 85psi (and when I started riding, bike + rider weight = 265lbs.) I'm now a combined weight of 213lbs, and run 84psi F/R with Michelin Pro4 700x28-- but have run as low as 65psi in the rear on Schwalbe tubeless.

Start at 85psi for the rear, see how it feels.
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Old 05-09-16, 02:36 PM
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You are probably safe at 104 psi but here's what I would do:

Inflate your tires up to 87 psi and ride it. If you find that you are getting frequent "snake bite" flats with 2 parallel slits, ease the air pressure up. If you don't (my bet) leave well enough alone.
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