Originally Posted by
SpeedofLite
Ha! I acquired the same bike, a green 1974 Fuji S10-S (with pump!) about 6 months ago. (
Green is the color of April bicycles)
The rims on mine are 27" steel Rigida Super Chrome. I have no doubt they were original to this bike.
That said, when Bicycling! reviewed the 1974 Fuji S10-S, the specs listed UKAI alloy wheels, so perhaps 1974 was a transition year for rims, especially if we learn 1975 rims for S10-S were UKAI alloy.
Road Test/Bike Review (1974) Fuji Special Road Racer S10-S
Or perhaps, Fuji wanted to influence braking or other ride characteristics for the road test model. Cynical me.
So I checked the 1974 catalog and the alloy UKAI rims are indeed the originally specified equipment. The bike I picked up has them as well.
Perhaps the original owner of your bike liked the smooth ride of steel rims?
There were quite a few changes year to year it seems, so maybe yours was a borderline 73 or 75 edition. Who know, I sure don't. But it is a pretty bike!