4-1/2 Inch BRAKE DRUM for Go Kart Cart Mini Bike replaces Yerf-Dog Manco Rotary
4.5″ OD Machined Drum for Brake Band Use. 4 1/2″ Brake Drum. (3) 5/16″ bolt holes on a 3-3/4″ bolt circle. (4) 1/4″ bolt holes on a 3-3/4″ bolt circle. (4) 9/32″ bolt holes on 3.225″ Bolt Circle.