I have a Bianchi Via Narone 7 Sora Compact. I absolutely love this bike. The problem is, since I bought it over the summer, I have put about 1,300 miles on it and have been through about 10 broken or bent rear spokes. I am still riding on the stock wheels that came with the bike, Jalco DRX2000's with 28 spokes. I weigh in at about 235lbs. Should I look at moving up to a 32 spoke rear wheel? Anybody have an opinion on the Shimano 105/DT Swiss R450 Rear Clincher Wheel. It is reasonably priced and money is a factor right now.