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3 comments
Always 120 psi. Cant go wrong.
Well, actually you can go wrong.
Its accepted that there is an optimum comfort/performance level on average road surfaces.
As pressure increases tyres roll faster but at a certain point this levels off and brings negligible improvements e.g.the bike is no faster but more uncomfortable.
Of course road conditions,rider weight etc all play a part.
Basically,if the tyre is too hard it will loose energy bouncing off small surface irregularities.
Inner tubes will take as much as you want to put in depending on the tyres you are using.