Our replacement #428 45 tooth chain rear sprocket for Coleman AT125-EX and AT125-UT ATVs uses a 7.31" disc with a 1.88" center hole, and four 0.338" unthreaded mounting holes.
Note: This sprocket is only compatible with #428 chain.
Specifications
Diameter: 7.31" (186 mm)
Sprocket teeth: 45T
Chain size: #428
Center hole diameter: 1.88" (48 mm)
Mounting hole diameter: 0.338" (8.60 mm)
Center-to-Center Mounting Hole Distance: 2.65" (67.4 mm)
Mounting hole distance: 1.88" (48 mm)