These premium, stainless steel exhaust clamps are sized perfectly for Harley Ironhead Sportster (1957-1985) exhausts both OEM and aftermarket, though they could work on other makes and models as well. High quality with modern engineering, the wide band and heavy-duty tensioning screw provide maximum contact and force, keeping your exhaust where it should be… on your bike. Minimum size of 1.74″ and a max size of 2.02″. We put the time in to sort out the best exhaust clamp possible, that also looks clean and tidy. Sold per pair. Made in the USA.