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28mm tires PSI??
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Went to wider 28mm tires to improve comfort and puncture resistance
-What is optimal PSI?
-Will any tubes work or are the 18-23mm tubes now too narrow?
Thx!!
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Re: 28mm tires PSI?? [jla] [ In reply to ]
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jla wrote:
Went to wider 28mm tires to improve comfort and puncture resistance
-What is optimal PSI?
-Will any tubes work or are the 18-23mm tubes now too narrow?
Thx!!
Ironically, it's not the size tyre but the pressure that dictates comfort. The reason you need a bigger tyre is because reducing pressure the same amount on a small tyre would make you vulnerable to pinch punctures.
Now a few bits of missing information required to give a useful answer.
  1. Clinchers?
  2. What specific tyre and what dimensions are the rims? 28mm is a nominal size, the actual size will depend on the specific tyre and the internal width of the rim.
  3. What do you weigh? Heavier requires more pressure
  4. What sort of bike? Tri bike puts you further forward than road bike so tyres would probably be more even in terms of pressure

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Re: 28mm tires PSI?? [Ai_1] [ In reply to ]
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May also want to consider whether you want best rolling resistance, best comfort or something on the spectrum in between.
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Re: 28mm tires PSI?? [jla] [ In reply to ]
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I'm running 28 (treaded touring) tires on my road bike at the moment. I've just been too lazy to swap them out after the winter/spring transition riding.

The tubes are 18-23 (and that works fine).

I'm using 60psi (my weight = 170Lb).
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Re: 28mm tires PSI?? [jla] [ In reply to ]
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How much do you weigh (with the bike) and what is the actual measured width of the tire?
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Re: 28mm tires PSI?? [jla] [ In reply to ]
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I use the FFT calculator, you enter your weight and tire width etc, and it gives you the optimal pressure for various conditions.
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Re: 28mm tires PSI?? [AGomez] [ In reply to ]
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AGomez wrote:
I use the FFT calculator, you enter your weight and tire width etc, and it gives you the optimal pressure for various conditions.

Can you post a link to that? Thanks!

Dimond Bikes Superfan
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Re: 28mm tires PSI?? [ericlambi] [ In reply to ]
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ericlambi wrote:
AGomez wrote:
I use the FFT calculator, you enter your weight and tire width etc, and it gives you the optimal pressure for various conditions.


Can you post a link to that? Thanks!

https://docs.google.com/.../edit#gid=1388801070

Genetics load the gun, lifestyle pulls the trigger.
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