Yes, SG75 is JIS. Yes, it fits fine on a Phil BB. I'm using the 111mm version because the clearance looked like it was going to be an issue with the 108mm version. I didn't have a single taper issue in the four months that I rode it before it got packed up for the winter.
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Originally Posted by
sp00ki
Using a nicer sealed bearing headset vs a $10 set is like throwing a frisbee vs a dodgeball.