Four Hole Sprocket For 420 Chain. Can Be Used On Other Applications Such as Trailmaster Go Karts. Must Select A Tooth Count In Options Menu.

Fits:

• Coleman Mini Bikes
• Trailmaster MB-200
• Trailmaster MB-200x
• Baja Warrior
• 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
• 40mm Bore Size,1.580" Center hole (Standard Size Bearings)
• 60 Tooth - 9 7/8" Diameter, Steel Sprocket
• 72 Tooth - 11 3/4" Diameter, Steel Sprocket