Crown 50 aluminum teeth 420 Kawasaki KX 80, 85, 100, Suzuki RM 100 Supersprox black

Rear sprocket 50 teeth Supersprox black Kawasaki KX and Suzuki RM 80, 85 and 100

Transmission tray par brand new chain adaptable for motorcycle 80cc, 85cc and 100cc Kawasaki KX and Suzuki rm

Technical characteristics of the crown

• Mark: Supersprox
• Drive train type: 420
• Number of teeth: 50
• Material: aluminium
• Colour: black
• Number of fixing holes: 4
• Type of mounting holes: smooth

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

• A - Fixing center distance: 82 mm
• B - Fixing center distance: 116 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 (width 6 mm, center distance 12.7 mm) but some 50s and most 125s use the 428 (width 7 mm, center distance 12.7 mm) even for 125 in 520 (width 6 mm, center distance 15.8 mm). All drive train parts, i.e. front sprocket, chain and rear sprocket, absolutely must be of the same type.