Rear sprocket 50 aluminum teeth 420 Beta RR 50 Gencod army green

50 crown teeth 420 Gencod Green Beta RR 50

Transmission tray par new chain adaptable for motorcycle 50cc Beta RR Enduro, Biker and SM Biker.

Technical characteristics of the crown

• Mark: Gencod
• Drive train type: 420
• Number of teeth: 50
• Material: aluminium
• Color: Army green anodized
• Number of fixing holes: 4
• Type of mounting holes: countersunk

Dimensions of the rear pinion (see marks on the typical drawing)

• A - Fixing center distance: 85 mm
• B - Fixing center distance: 120 mm
• C - Diameter of fixing holes: 8 mm
• D - Inner diameter of the crown: 100 mm

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