Groove Measurement 1 16.50, Rear Distance 4.70, Free run w/, Width 1 40.60, Pulley type OAD, Bore dia. 17.00, Grooves 6, Depth 14.00, Belt type Multi Belt, Thread size M17-1.50, Outer Diameter 54.10, Remarks Attention: Always change OADTM pulleys with the same OADTM technology – To prevent damages and loss of warranty in case of failures.