Solid sheet steel housing shiny zinced,
screwed axle, with plate. Pivot bearing
closed, with ball bearing, particularly
protected from dust and splash-water
nearly free from float.
Long lasting and maintenance-free!
Rim made of Aluminium, with ball bearings.
Round Polyurethane coating, non detachably
fixed with the wheel body, elastically,
low-noise and abrasion-resistant, very small