I just put on a B.67 (had a champion flyer which is a sprung b.17) and the B.67 is CUSH without being bouncy. Great for potholes, but for me it is noticeably wider in the thigh area and mine is a little noisy. Any tips on quieting it up? It's not really squeaky, more of a creak that at first I thought was my chain making noise.
Got mine new on ebay for $89 i think.