Rear sprocket 53 aluminum teeth 420 Derbi DRD Racing (before 2010), DRD Pro Supersprox Orange

53 crown teeth 420 Supersprox Orange Derbi DRD Racing and DRD Pro

Transmission tray par new chain adaptable for motorcycle 50cc Derbi Senda DRD Racing before 2010 and DRD Pro.

Technical characteristics of the crown

• Brand: generic
• Drive train type: 420
• Number of teeth: 53
• Material: aluminium
• Color: orange anodized
• Number of fixing holes: 6
• Type of mounting holes: smooth

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

• A - Fixing center distance: 80 mm
• B - Fixing center distance: 43 mm
• C - Fixing center distance: 123 mm
• D - Fixing center distance: 108 mm
• E - Diameter of the mounting holes: 8 mm
• F - Inner diameter of the crown: 102 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.