Piston FORTE: 40.40mm Aprilia, Derbi, Gilera, Keeway, Piaggio

Piston Measurements: 40.40mm Compatible mm: Aprilia (Piaggio engines 04->) Derbi (Piaggio engines) Gilera 50cc scooters Keeway (EXCEPT F-act, Focus, Matrix) Piaggio 2-stroke scooters FORTE offers a comprehensive range of spare parts and accessories for mopeds and scooters. Often, these parts come from the same factories as original parts, with the main difference often being the price.