Seems there is lots of wiggle room on the proper tire pressures for the metzler, Tourrance,
140/80 R 17/19 tires.
I ride one up, basically on paved or gravel roads, and do some long distance riding carrying luggage etc.
The local dealership ( Grand Rapids,Mi. ) had a workshop recently and the Metzler rep. talked at length
about how critical correct tire pressure is to safety, handling, and tire longevity.
I thought his reccomendations were 42 rear...40 front. These are not the number shown on the sidewalls.
Would appreciate your input.
Thank you in advance