Modern Vespa

Hello All! Living in the Phoenix Arizona climate the weather is very hot and dry. I would like to lube my front and rear tire/hubs on all 5 of my scooters because when riding I sense the wheel movements feel dry. I remember as a youngster I would seasonally lube up my Schwinn bicycle tires and chain using my Dads old oil can, or maybe it was Moms little sewing machine oil. Anyway, is there a quick way I can add lubricate to my hubs without disassembling? Thanks,
Joe in Carefree, AZ.

I'm hoping you're joking here, but keep oil of any sort away from your scooter tires and if the ride feels funny, check the tire pressure and add a few PSI.

Your Schwinn tires didn't involve steel belts, pressure-set tire beads, cast wheels, high RPM, high speeds, or deceleration forces created by hydraulic brakes. And they were also tubed.

Also aren't they sealed bearings?

They should be!

If any of them feel or sound 'grundly' then replace.