I bought a pair of Shimano STI Deore LX 7 spd/brake set. The guy I bought them from off eBay advertised them as only being cantilever brake compatible, not V-brake. That doesn't make sense. All the levers do is pull on the cable, now thats all they need to do, its just the cable and brake that made it canti or V-brake. Am I right or have I missed something crucial? I tested them on my bike with V-brakes and they worked perfectly fine. I hope I didn't misuse them.