Max rated psi for Mad City 4 tires

[RLong]

Anyone know the max rated psi on the Rad City 4?  I can't see it on the tire.

[TDR]

The owners manual recommends 50-60 psi. I can't read it on the sidewall either. Went to Kenda web site and the K-Rad 26 X 2.3 tire shows 80 PSI.

26X2.30 (58-559)
PART NO.   COMPOUND   PROTECTION   BEAD   TPI   PSI   WT (KG)
052A9043   DTC   NA   FOLDING   60   80   760±40
05215132   SRC   PRC   WIRE   60   80   894±45

[RLong]

Thank you. I've got mine filled to about 55.

[Seasaw]

very hard to read, my Kenda's say 30 - 80 PSI.