The wheels currently used in the motorcycle industry are substantially of two types:
the alloy rim
in which the outer rim and the central hub are connected by rigid spokes.
the wire or spoked wheel
in which the rim is connected to the hub by a tensile structure of wire spokes.
Although both types have advantages and disadvantages, and beyond subjective aesthetic preferences, the latter is often better for motorcycle use and therefore more widespread then the alloy wheel. Indeed, while an alloy rim is lighter than a spoked one and almost does not require any manteinance, the rigidity of its structure makes it unsuitable for less-than-regular surfaces, not just like dirt tracks or off-road paths, but also for more demanding ordinary roads. The wire wheel is a tensile structure, quite elastic to absorb the mechanical stresses given by the roughness of the track, whereas an alloy rim con break due to an impact to an obstacle (for example a road hole). In case of breakage, an alloy wheel becomes dangerous and unusable, while a wire wheel would be able to continue even with some broken spokes. While broken spokes can be easily replaced individually, a broken alloy rim must be replaced in its entirety. The spoked wheel is therefore the most used not only where irregular or mixed surfaces are expected (such as motocross, enduro, motard), but also for everyday use if the biker does not want to preclude itself from more challenging road conditions.