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I have a 1976 peugeot 10-speed bike. What is the correct tire pressure? I ride over concrete sidewalks and rough, pitted asphalt roads and paths.

8
  • What width are the tires?
    – Jamie A
    Apr 10 '17 at 18:04
  • 3
    The tire more determines than the bike. It should state a pressure on the side wall.
    – paparazzo
    Apr 10 '17 at 18:06
  • How old are the tyres?
    – Carel
    Apr 10 '17 at 18:34
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    Age of the bike has little to do with the pressure needed. Tires (size and maximum pressure) and to a limited extent rims, dictate the pressure to run
    – mattnz
    Apr 10 '17 at 22:23
  • The rider's weight will also factor into it.
    – tir38
    Apr 11 '17 at 1:49
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First, and especially with a tire that old, check it for wear. If it's cracked and dry-rotted, replace it. If there are visible rips in the sidewall, also replace it. If neither of those are the case, look at the sidewall of the tire. Most tires should have a PSI recommendation molded in the rubber of the sidewall somewhere.

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Assuming the tire is in good condition, else it should be replaced. The pressure for the tire can be calculated with this tool (see Link). Also when you purchase a quality tire there should be a guide delivered with it that tells the pressure based on the weight of you + bike.

There are several other factors you want to take into account.

  • The pressure on the tire is the maximum pressure you can go lower as that.
  • You and only you can determinate the most comfort/effective pressure for the tire. For example Paris Rouxbais riders all have different pressure in their tires, some even have different pressure at the front and rear. Based on their own experience and comfort. Same goes for cyclo cross riders.
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  • "harder = better" has been discussed and measured and has been found to be false.
    – ojs
    May 29 '17 at 19:48
  • It is my personal opinion as I stated. Look at the tire for the pressure is worst thing said on this topic. All is relative to the tire type.. Tubeless with 10bar will feel softer then tire with inner tire with 7bar pressure. May 30 '17 at 7:09
  • I know, it's just that your personal opinion contradicts facts.
    – ojs
    May 30 '17 at 19:07
  • In my personal experience as road cyclist from age of 14 to 23 (quited as my U23 career ended and did not manage to get a contract). I had a base pressure that was good for me and after the recon I would tell the mechanic based on the road that was a head keep the base pressure, increase the pressure or decrease the pressure. And this is how I learned it in the circuit. If you ride on a smooth race track harder = better simple as that. May 31 '17 at 7:12
  • This edited version is far better. The thing is, if the ground is not completely smooth and your tires don't absorb it, you'll get worse losses somewhere else.
    – ojs
    May 31 '17 at 19:25

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