I have a yamaha scooter cy50d jazz

it has tires 80/90-10 34J listed as replacements in the manual.

I have little over 2000 miles on these tires and they still have decent tread, but want more...

I have read on forums can replace with 2.5-10 tire

also a 3.0-10 tires (on some sites they aren't stocked anymore)

I don't understand a ton about the numbers and tire sizes but enough to know want biggest/most rubber.

Can anyone advise?

Would like biggest tires/wheels but there are some clearance wheel issues I'm sure