Steering Race Set for Aprilia / Piaggio Various Scooters.
Steering races commonly develop a notch in the centre of the steering, due to most riding being in a straight line. This usually manifests as a feeling that the steering always wants to center itself (sort of like how a car door wants to hold in certain positions as it is opened). This is dangerous, as it effects the handling characteristics of the bike particularly in cornering situations.
Aprilia 50cc-125cc models, Piaggio 50cc-150cc Models, Vespa 50cc -300cc Models.