3/4" shaft with 3/8" pitch (#35), 12 teeth, set-screw.  Fits most karts with 3/8" pitch chain where the special grease fitting style is not required.  Replaces Comet 209760A, Manco 4335, and American Sportworks 12971. 

This is a special-order part. Please allow an extra 7 business days for delivery. Your card will be charged as soon as the order is processed, and the order may not be cancelled or returned.