I have a vintage Gitane Sprint from the early '80s which came with Weinmann 405s (single-pivot side pulls). I had been thinking about replacing the front brake anyway and then recently broke the quick release, which has been nearly impossible to replace without buying an entire brake and using it for parts. I was considering putting on a dual-pivot brake to help with some centering issues common to the Weinmanns as well as to increase stopping power.
Would a Shimano Tiagra 4500 be compatible with the Weinmann levers? If not, what type of brakes should I be looking for (whether new or vintage) without having to replace the levers?