Crown 51 aluminum teeth 520 Honda CR 250, 450 CRF ... ACD gray

Crown 51 teeth 520 ACD gray Honda CR 250, CR-F 450...

Transmission tray par new chain adaptable for motorcycle cross, enduro 250cc, 450cc and other Honda CR, CR F, HM CRE...

Technical characteristics of the crown

• Brand: ACD
• Drive train type: 520
• Number of teeth: 51
• Material: aluminium
• Color: anodized gray
• Number of fixing holes: 6
• Type of mounting holes: countersunk

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

• A - Fixing center distance: 77 mm
• B - Fixing center distance: 133 mm
• C - Fixing center distance: 153 mm
• D - Diameter of fixing holes: 8 mm
• E - Inner diameter of the crown: 125 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.