I have one on my Stumpjumper and actually really like the E-type. On my bike though, I can't put a clamp on it because Specialized "crimped" the tubing to allow more room for the derailleur. Can't really figure out why but they did. Luckily my bottom bracket has survived numerous years and haven't had the need to replace it yet. But when I do, I will probably switch over to the Shimano Hollowtech BB/crankset because they allow the E-type.