Tyre: 8 1/2" x 2" (8.5" x 2") for Xiaomi (inc. Upgraded CST Extra Thick Rubber option)

Tyre: 8 1/2" x 2" (8.5 inch x 2 inch or 50/75-6.1) for Xiaomi Mijia M365/Pro.

Butyl rubber.

Requires Inner Tube (sold separately)

Choose STANDARD Tyre, NON-SLIP or UPGRADED CST Tyre (extra thick) from drop-down menu.

UPGRADED CST Tyre (with white stripe) is extra Thick Rubber (and a slightly different tread pattern, as per pics).