Tube 8.5 x 2 (also 50/75-6.1)

Tube 8.5 x 2 (also 50/75-6.1)

Inner tube (Innertube) 8 1/2 x 2 ("eight and a half by two"), 8.5 x 2.0 ("eight point five by two point zero"), 50-134. Straight valve stem. Direct replacement for SHOK Scooters Neutron kick scooter as well as many other brands and models such as Segway and Xiaomi.