One New Aftermarket Manufacturer Part 90S5M685PACKAGED UOM 1EACHTECHNICAL SPECIFICATIONS Brand DD Powerdrive, WidthThick 9mm, Length 685mm, No Of Teeth 137, Material Neoprene, Series S5M, Pitch 5mmFEATURES BENE FitsSTS or Super Torque timing belts have a modified curvilinearround tooth profile which enables them to transmit greater loads then HTD timing beltsSTS timing belts run silently even at high speedsDue to the direct engagement of the belts tooth top STS timing belts run more efficiently then any other timing beltsSTS belts do not require any lubrication or retensioningliliCan be used in STS timing pulleys or HTD timing pulleys without transmission power lossliliDue to the unique curved tooth profile STS timing belts offer a much longer service life then HTD timing beltsliliConstructed from flexible neoprene r.