First time Exedra Max rear tyre
I was told by a rep at Metzler that I could safely go as high as 50 psi on the rear, and did so on our Grand Canyon trip. You'd think that would wear out the center but on these modern low profile tires, it seems to be the opposite. My theory is that at highway speed, centrifugal force causes the tire to expand in the center. Higher air pressure pushes against the side walls and counter acts it some. This is not based on any hard evidence, just my massive knowledge of the universe and how it all works.
 


Would you then please hurry up & come out to debunk this global warming bullshyte!!!!!!!!
 
1olbull said:
Herman,
Me thinks 30# in a rear Exedra Max is too low regardless of your weight!
38# to 42# would be my window . . .
Click to expand...


i took a little trip (200 miles) so i raised them both to 32 psi seemed to work really well so i think i will leave them like that for a while to see how the tires wear.
now if some run car tires to get better milage i think that running 32psi is better.
 

Herman,
One of the issues I have with car tires is the use of non recommended tire pressure in order to get enough sidewall flex for the tire to roll over and conform to the road surface when at lean angle - something a car tire on a car never has to do. MC sidewalls are purposely made stiff because lateral tire flex of any kind negatively affects handling precision. You are indeed a light-weight and may get away with less pressure; however, I would think this would increase wear and reduce overall mileage.
Please keep us posted regarding your test adventure.
 
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