Originally Posted by JerryH
Oooh that is a sweet looking scooter. It looks like the tires are lower profile than stock, it's possible the overall diameter is no bigger than the 12" tires with a taller sidewall. I don't like low profile tires. Not only do they give you a rough ride due to the fact that the sidewalls don't flex as much, they are also more likely to allow wheel damage. A lot of cars I see around here with 24" wheels and tires with a 1" wide sidewall have rim damage to the wheels.
That's right! The guy put some lower profile tires 13"/60 instead of 12"/70 so the overall diameter of the wheel wouldn't change. It's not all that dramatic though. He put on low profile radial tires. I think it's a good mod.