Tyres Wheelchair

24 x 1-3/8" is the standard size for wheelchair rear wheels. They are the same size as used on 24 x 1-3/8" bicycles (although rarely these days) and are designated as wheelchair tyres by being grey rather than black, to avoid marking floors.

CST Wheelchair Tyre 22 x 1-3/8 Grey

CST Wheelchair Tyre 24 x 1-3/8

Tyre Solid Grey 24 x 1-3/8