Just FYI, the tires/wheels on this kit are the 10" but what they send you are the 8" which look completely different.
There is only one style of Azusa bike sold new with 5", 6", 8", and 10" wheel options. The 10" kit comes highly unrecommended because of wheel wobble issues.
We sell the same 8" wheel kit as this company for much less:
Azusa Minibike Kit - 8" Wheels
The wheels on the 8" kit actually look like this:
AZUSA TRI-STAR WHEEL - AZ1152