timing belt 160MXL: two hundred enamel circumference: 406.40mm 165MXL: 206 teeth circumference: 419.10mm 177MXL: 221 teeth circumference: 449.58mm 180MXL: 225 tooth circumference: 457.20mm 184MXL: 230 Tooth circumference: 467.36mm Product parameters: Pitch =2.032mm thickness =1.14mm height =0.51mm width =0.76mm