If you read the service manual, the front wheel is easy enough to get off, BUT
the rear wheel removal involves removing the muffler. We decided to have the local
motorcycle dealer do the balancing and install.
Unfortunately, the wheels need a 10mm axle to spin balance and the dealer
did not have that for his balancer or else he didn't know how to use the balancer.
Note: I bought the AVON tires from the dealer and got a good price.
But he did the install for both wheels and I took the front wheel to another shop for balancing. A bit of a hassle.
The front AVON tire is out of round but ok for riding now, probably get a different tire next year if I still own this scooter.
SO hard to get what you want when you depend on others.
Ask about the service you want and the price.
Ask about the age of the tire when it arrives at the shop
Ask about reasons for rejecting the tires.
scoot safely.