SIMPLICITY 4000 Series Lawn Tractor Compatible Belt Features : V belt Type 1 DIN / ISO : ISO 4184 DIN 7753/1 BS 3790 Upper width of belt bo approx. : 13.00 mm Upper width of belt bo approx. : 1/2' Outer length Li approx. in : 1730.00 mm Outer length Li approx. ' : 68.11' Inner length Li approx. : 1793.00 mm Inner length Li approx. : 70,60' Length Ld ISO/ LW/ Lp approx. : 1775,00 mm Length Ld ISO/ LW/ Lp approx. : 69,88' Original code : 1727773 ss