Rear sprocket 39 teeth steel 420 Yamaha 50 FS1 Ø64mm

Black crown 39 teeth Yamaha FS1

Transmission tray par new chain adaptable for motorcycle 50cc Yamaha FS1 of 1968 1990 to.

Technical characteristics and dimensions of the rear toothed pinion

• Brand: generic
• Material: steel
• Drive train type: 420
• Number of teeth: 39
• Black color
• Number of fixing holes: 4
• Diameter of fixing holes: 8 mm
• Crown Fixing Hole Type: Smooth
• Fixing centers: 56 mm and 80 mm
• Inner diameter of the crown: 64 mm
• Rear sprocket dimensions shown on the diagram

It is essential that you you check the type of drive train you need before ordering. On small motorcycles, most 50cc use the 420 (width 6mm, center distance 12.7mm) but some 50s and most 125s use the 428 (width 7mm, center distance 12.7mm) even for 125 in 520 (width 6mm, center distance 15.8mm). All drive train parts, i.e. front sprocket, chain and rear sprocket, absolutely must be of the same type.