Did the 15 Roadster usually carry a spare? If so where and how?
Not from the Ford Factory - spare tube or tube repair kit in the trunk.
What year did the cars start coming with a spare rim without a tire mounted?
Richard, Try these past threads here.
The spare rims came about in 1919, with the introduction of the demountable-rim wheels on Fords. Other cars had them sooner, of course.
Prior to that, folks carried spare tubes and patch kits, and often a spare tire or two on the running board.
Short answer, no spare tire. 1915 cars had non-demountable wheels, so there would not have been a spare tire and rim. I believe that most folks would have carried spare tubes, jack, tire irons, pump and a patch kit. Those people who may have traveled a bit further afield may also have spare tires on an aftermarket carrier. I hope that this helps. Bill
This carrier is on my '14. A '15 could use this style, it is a two tire carrier, or one of the windshield bracket types. I don't have a picture of that style. I hope someone else can post a picture of that type.
Occasionally you see a car with a couple of complete spare wheels on the running board, one front and one rear. Of course this is an owner-installed innovation, not factory.
Thanks for the information. Doesn't look like the one's Bill Harper posted would be to hard to duplicate. Might give it a try.
I think you will find that this is the most common spare tire carrier used in the teens.
Here are some more that might give you ideas.
And then, of course, you have the homemade variety. If I did it, then someone in 1915 did it too!
(BTW, idea shamelessly stolen from Steve Jelf ;o) )