Originally Posted by
Al Downie
Having noticed that there's a maximum recommended tyre pressure of 55psi on my supposedly bombproof Mavic 729s, I'm wondering if I should be concerned about the increase in pressure when I get on the bike with all my luggage.
If you're inflating to a target air pressure, do you stop a little short to make allowances for extra weight on the bike, or just ignore it and hit the target bang on?
I have not heard of rims with a pressure rating, is it the rims or your tyres that are rated? 55 psi is not high at all even the really cheap tyres can go up to 65 psi. If the mavics rims could only go to 55 psi it would make it a bit pointless.
Myself for load carrying i'd go to higher psi tyres so you get less rolling resistance. As for the tyre pressure ballooning; the manufacturer has already factored that in.