Can I suggest you tell us what size you have installed now? With most bikes If you photo the rear wheel as installed we'd need to see the space between chain stays and the tire and between the brake bridge and top of current tire, but some bikes require a review of the front clearance as well. Also - not all tire are actually sized the same (some 28mm are wider than others, same with 32's, some wider than others) so you might simply research "actual width" or "true width" of several brands. Ex: "Actual width of 700c x 28mm Gatorskins"
In the meantime, try this thread.
https://www.bikeforums.net/classic-v...ledge-too.html