4 Hole Sprocket For 420 Chain. Can Be Used On Other Applications Such as TrailMaster go Karts. Choose Tooth Count Above In Options Menu.
Fits:

• Coleman Mini Bikes
• TrailMaster MB-200
• Baja Warrior
• and similar mini bikes with 8" wheels.
• Does not fit a standard 6" wheel, the 6" wheel has a 2 7/8" bolt pattern

• 4 holes 3/8"
• 3.150" Bolt Circle
• 1.580" Center hole (Standard Size Bearings)
• 60 Tooth - 9 7/8" Diameter, Steel Sprocket
• 72 Tooth - 11 3/4" Diameter, Aluminum Sprocket