1982 Schwinn "world tourist" with alloy wheels, Sturmey-Archer, steel fenders, chain guard, kick stand, rack, single Wald basket, lights, and small sag bag and pump. 34 pounds.

My 1983 Trek 311 has a similar "groupo," but with none of the commuter attachments except an identical sag bag and pump. 24 pounds.

This is simply what entry level bikes weighed during that era. I've made no attempts at light-weighting either bike.

I know weight doesn't matter in a strictly utilitarian sense, but the Trek just feels more responsive, faster, and more fun to ride. Of course geometry and aerodynamics play a role, or it could be just psychological.