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Old 03-09-21, 05:42 PM
  #47  
scottfsmith
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Join Date: Feb 2021
Location: Merry Land USA
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Bikes: Roubaix Comp 2020

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Originally Posted by DaveSSS
I'm running michelin tubeless 28mm on two bikes. They've been great so far. I set my air pressure by the recommendations of the zipp pressure calculator. When running pressures in the sixties, an accurate gauge is important. I replaced the gauge on my pump with a new liquid filled winters 0-100 psi model. My old gauge was reading 8 psi higher than actual.
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I notice some people are putting a lot more pressure in the rear tire. The zipp calculator recommends 62 front and 64 rear for me.
Only 8 psi off? I found my "trusty" pump was tricking me by 15psi all these years. I am also now trimming with a digital gauge.

I don't understand that Zipp calculator on the front vs rear, if you look at the deformation you need more difference to equalize them. The calculator at psicalculator.com puts less in the front and more in the back relative to Zipp, and I am doing more of that recently as well.
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