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Tire Pressure Question (lemmy.world)
submitted 5 months ago by to c/bicycling@lemmy.world
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Evening,

I got myself a new e-bike that has Kenda 42-622 (700x42C) hybrid tires that indicate Min 50 PSI, Max 80 PSI. What would you recommend to set the PSI to?

I’m 240-250 pounds and ride the bike on either street, paved rail trails, or light gravel.

Reason I’m asking is that my previous e-bike had fat tires that weight up to 70 pounds (total bike wgt) and the PSI range was much lower, so inflating these even to 50 PSI makes me a bit nervous as the bike is only 40 pounds. I assume it’s due to the difference of the diameter of the wheels but I rather check!

Thanks!

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[–] 3 points 5 months ago (2 children)

Being on the chonkier side, you should probably start on the higher end of the pressure range. You really want to avoid the tires bottoming out and hitting the rim while passing over obstacles. That often leads to punctures. Once you've established an upper bound you can work your way down to the kind of comfort level you like best. Less pressure means more comfort but also more rolling resistance. In short, there is no right answer. Just start with something reasonable and experiment.

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