Originally Posted by
roadwarrior
After about 10 years of riding this stuff (introduced around 2000), I disagree. But also understand that the real intent of things like this is to get weight out of a bike for a professional. And since virtually everyone on a road bike fancies themselves a pro (Walter Mitty types) the manufacturer's allow these standards into their line up. Because one of the first three questions I get from a prospective road bike customer is "how much does this bike weigh???"
Lot's of people want to ride paper weight light bikes but do not realize that those bikes, at the pro level, are serviced every day. Like a NASCAR stocker or an Indy Car (designed for high horsepower short duration). So, I ask the customer if they want light or do they want a bike that they can ride for a while without thinking about it? If it is the latter, I tell them to save their money and buy a less expensive bike with more durable components. They will be a lot happier.
I have been riding BB30 since before it hit the commerical market but I also know how to service it (as do our mechanics) so it has never been a problem.
A treatise could be written comparing BB30 to theaded BB. I believe largely what you have written because of course it is rooted in fact and experience.
I do have to ask however. I believe you still ride a fair amount of miles. How often do you service your BB30?..based upon miles or time? Do you regrease?...or automatically replace the bearings which are inexpensive?
Further to others comments...this discussion is about BB30 and PF30 hasn't been mentioned...PF30 involves Delrin bushings which have been statistically more problematic than BB30...because of the low yield strength and lubricity of Delrin bushings. PF30 offers a considerable cost savings to the frame mfr...in terms of mfg cost. Specialized uses a narrow version of PF30 on their flagship Sworks bikes and many have suffered. As RW stated, pro racers who race these bikes can change bearings every couple of days if they want...a pro mechanic can change them in ten minutes. BB30 versus threaded carbon shell...almost a wash cost wise. BB30 bores have to be machined and precise...best to finish machine for co-linearity after insert molding the alloy cups. If you Loctite in BB30 bearings, they shouldn't make noise. PF30 is more challenged from a maintenance standpoint.
Speaking of which, Roadwarrior, have you owned PF30 bikes?