POLINI Racing Floating Brake Disc Vespa PX, T5, Primavera, Sprint, LML (1998-) Piaggio ZipPOLINI Racing Floating Brake Disc Vespa PX, T5, Primavera, Sprint, LML (1998 ) Piaggio Zip The POLINI Racing Floating Brake Disc for Vespa PX, T5, Primavera, Sprint, and LML models was first introduced in 1998. This high performance disc is specifically designed to efficiently disperse heat, outperforming traditional Genuine Discs. Its superior design includes a floating bearing, advanced floater tension discs for reduced noise, and a sturdy floater