39 teeth aluminum 420 Y crownCF SuperSM125R motorcycle, SM F190, SP... silver

Rear sprocket 39 teeth dirt bike, pit bike YCF Supermotion SM F190, SM F150 ...

Transmission tray par new original chain for pit bike, dirt bike, pocket bike, mini motorcycle cross, supermotard, mini SM, small Y super biker motorcycleCF SuperSM125R motorcycle, SM F150, SP...

Technical characteristics of the crown

• Brand: YCF
• Modèle: Factory
• Drive train type: 420
• Number of teeth: 39
• Material: aluminium
• Color: silver gray
• 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: 65 mm
• B - Fixing center distance: 92 mm
• C - Diameter of fixing holes: 8 mm
• D - Inner diameter of the crown: 75 mm

For mounting a chain with quick release, multi-grip pliers and possibly a flat screwdriver will suffice. If you need to shorten it then you will need a chain tool. To avoid this, remember to count the number of links necessary to order the correct length.

A chain is made up of different links, or links, and can be of different widths. It is essential to check the type of secondary transmission which you need before order. All the parts of the kit, namely the pinion, the chain and the crown, must imperatively be same type (not).

All about the different types of transmission.