Malossi, Piston (47.0mm); Suzuki, Derbi, Morini Rattler Timing Tensioner Gasket Inner Diameter:

Timing Tensioner Gasket Inner Diameter: 22mm

but you would have to drill out the hole on the frame bigger (11mm to 13mm)

The contra spring controls two things: it supplies pressure to engage the drive belt

Gloss White Finish: Features a multi-stage powder coat that is resistant to chips

Engine gasket set for Vespa small frame scooters

Malossi, Piston (47.0mm); Suzuki, Derbi, Morini Rattler Timing Tensioner Gasket Inner Diameter:Piston 47,0 mm Scooter 50 Morini, Suzuki, Derbi (65ccm Malossi Guzylinder) 10mm piston pin Component of 346,445 * 237578B piston pin 10 x 38mm Scooter 50 Minarelli, Morini * 366,941 piston pin retainer 10mm G (1) * 354,501 * Piston ring 47,0 mm x 1. 5 mm kit complete (2 pieces) 346,445 is for spare parts * 3111146 cylinder head castings Derbi Scooter 65ccm (water cooled until 2003) * 3111143 cylinder head castings Derbi Scooter 65ccm aircooled *