I need to pump my rear tire to raise the ground clearance from 4.8" to 5" to get on the autotrain. Does anyone know what the max pressure is for met 880.

 

check the metzler website, it has a table. when I ran a Metzler 880 I kept it at 50 which was the recommended pressure for 2 up heavy for the tire I was running. Again, check the Metzler website. it has your answer. All that said, I don't know if that will get you .2", seems like a lot.