My personal experience on the width issue. The above mention Omega bars are 42cm but shoulder measurements indicated that I needed a 44cm bar so I went wider on a different bike. I tried my best to get used to the extra width but I hated it. I felt so spread out, like I was riding a mountain bike. I didn't think two extra centimeters would make such a difference. So I bought the same bar in a 40cm and the effects have been pleasant. I love it, and I don't feel cramped or feel like my breathing is restricted in any way. I'd guess it comes down to personal opinion and everyone is going to feel differently, just play around with cheap bars before you make a big purchase!