Info:B&B Manufacturing Powerhouse™ 17LF050X3/4 Type 6F L Timing Pulley, 3/4 in Finished Bore, 1.999 in OD, 17 Grooves, 2.029 in Dia Pitch, 3/4 in W Face
Info:B&B Manufacturing Powerhouse™ 17LF100X1/2 Type 6F L Timing Pulley, 1/2 in Finished Bore, 1.999 in OD, 17 Grooves, 2.029 in Dia Pitch, 1-1/4 in W Face