The manufacturer, TST, has confirmed that the Internal Tire Sensor for TST TPMS Systems # TST-507-INT-S1 fits on up to 16 inch wheels; there isn't a smallest or narrowest wheel these sensors work on. The bands the sensor comes on is 51 inches (4 feet).
I have added a link below to a video review for you to check out as well of the Internal Tire Sensor for TST TPMS Systems # TST-507-INT-S1. view full answer...