Solid tire, 14x2.125 size, inner diameter 23.1cm, outer diameter 33.6cm, rim groove width 29mm. Bihoneycomb construction. Advantages include puncture-proof operation and no-need-to-inflate maintenance. Honeycomb tire engineering provides the reliability of a solid tire while also contributing additional shock absorption and suspension characteristics during operation. Commonly used for E-bikes, E-Scooters and general E-mobility.