Reference: 100320200
Brand: Piaggio
Half pulley / Starter crown Piaggio 125-180cc (78 teeth)
Starter ring also called half pulley for Gilera & Piaggio 125 - 180cc 2 Stroke engines. NOTE 78 TEETH. Skipper but also Hexagon often has 76 teeth. Count them well first because if you order the wrong one your electric start will no longer work properly.