12 teeth 428 box output sprocket AM6 minarelli Fifty

Motor gearbox output pinion AM6 minarelli

12 new teeth transmission pinion suitable for motorcycle 50cc Beta, Aprilia, Rieju, Sherco and other motorcycles with secondary transmission in 428.

Technical characteristics and dimensions

• Mark: Fifty Moto Parts
• Material: steel
• Colour: grey
• Sprocket Outer Diameter: 53mm
• Inner diameter over sprocket spline: 18mm
• Total sprocket thickness: 7mm
• 428
• Number of teeth on the pinion: 12 teeth

It is essential to make sure of the type of transmission you need before ordering. On small displacements we find mostly on the 50cc of the 420 (width 6 mm, center distance 12.7mm) but some 50 and most of the 125 are equipped with 428 (width 7 mm, center distance 12.7mm), even for the 125 by 520 (width 6 mm, center distance 15.8mm). All the parts of the kit, namely the pinion, the chain and the crown, must imperatively be of the same type.