Tires for Segway miniPRO and Xiaomi
Segway miniPRO and Xiaomi use the same default tires. You need to check the tire size. You can read about how tires index to better understand "the mystery". By default both Segway miniPRO and Xiaomi use tires 70/65-6.5. In addition to the standard version "off-road" and hybrid tires exist that are either 90/65-6.5 or 85/65-6.5.
You can purchase tires for Segway miniPRO here: