Go Cart Kart Mini Bike Steel Rear Sprocket  #41 Chain Size with 48 Teeth 8247

Dimensions and Specifications
NO. OF TEETH    48
CHAIN TYPE    NO. 41
UNIVERSAL MOUNTING HOLES    5/16" & 3/8"

Center hole is approx 2 1/4"  there are 8 bolt holes with 4 of them 3/8" and 4 of them  5/16"  bolt holes are 1 1/8" on center apart from each other and diagonally they are 2  3/4" apart.