Replacement spring clip kickstarter pinion gear to fit vehicles fitted with 50cc Peugeot vertical engines. This part is only compatible with Peugeot Euro 2 engines (2004 onwards) fitted with an electric oil pump and a 20 tooth kickstarter main gear. Pinion Head Height: 15.5mm Spline Teeth Count: 7 ***Please check that your existing pinion has the exact same pinion head size and spline teeth count before purchasing as Peugeot use 6 different types. Other sizes used are 13.5mm and 12.5mm and some pinions will have 8 teeth on the splines and be used in conjunction with a 21 tooth main gear so accuracy is key. Installing the wrong size pinion will cause the kickstart mechanism to wear faster than normal and may cause damage to other kickstarter components*** Note: For Peugeot scooters with Keihin oil pumps and a 20 tooth main gear, you will need part number 21080. For models with Mikuni oil pumps and a 20 tooth main gear, you will need part number IP12715. We currently do not have replacement 8 tooth pinions in stock.