Aprilia RS660 Race Seat UnitRace Seat Unit for APRILIA RS660 Suitable for all OEM APRILIA RS660 Fairing made from GRP material Developed with a focus on fit and surface finish GRP QUALITY High quality GRP fiber material combined with a durable gelcoat ensures maximum product durability. The surface of our products is already perfectly smooth without pores or inclusions. The GRP fibers are layered extremely compactly, with a minimum of epoxy resin to ensure the lowest possible