They're Suntour 7, in fact in his pic of the front der you can clearly see it says 7.
I've flipped that exact same bike earlier this year. The one I had I dont think had ever been ridden as it had the original tires with the nubs on them still. For what it was (a mid/low end foreign made 80's bike) I think it was pretty nice.
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Jack Taylor Super Tourer Tandem (FOR SALE),
Jack Taylor Tour of Britain, Px-10, Carlton Flyer,
Fuji The Finest,
Salsa Fargo, Santa Cruz Tallboy, Carver All-Road
.