The used 2007 Agility I purchased a few months ago had approximately 16,000 km on it. It had the OE front tire, and a replacement Pirelli Diablo Scooter tire in the rear. I didn't like either, for many reasons ... and they didn't match, either visually or in handling characteristics.
I purchased a matched set of Pirelli SL26 tires, at the standard size: 120/70-12 in the front and 130/70-12 for the rear. The load range is 51 for the front and 56 for the rear (I did not want a 62 load range for the rear). The scooter and me together (approx 385 lbs.) are well within the load limits for a 56/51 set.
The scooter has a much better ride and handles much better. They stick well also.
Best,
Ed