Not really a fan of GXP because I'm too lazy to service it every 100 hours. I'd rather have a sealed BB that I just toss and replace every 3 years or so. CK and Hope BB's are supposedly bomb proof but they are $$$. Hope is $80ish plus the GXP spacer kit. CK is $120ish. Compare that to $25-35 for the 2011 GXP.