I found a new bike, a Windsor that someone had for sale on Craigslist and went with that. After looking around for some bullhorns for it, it dawned on me that the old risers that I had on those two previous bikes were extremely wide. They were some bars I took off an old mountain bike, and when I would stand up to climb a hill which is something I do a lot of on my commute, I must have just been torquing the **** out of the front end with all the leverage of those bars and my weight on the front end of the bike. I think this might have been the cause of them breaking. Does that sound feasible?