I am not an expert but I doubt I could be comfy on a B17. My sit bones are 164mm center to center... but I'd bet you'd be okay on the B17 or the team pro. I haven't TRIED either one though, so it's hard to say (love the copper rivets on the team pro though).

I am pretty sure that there are several others here on TE who ride either the b67 or b68 on road bikes.. becuase no other saddle is WIDE enough. Is it meant for road use? Perhaps not, but when you're not given a whole lot of other options... it works great