The cup & cone style BB are more adjustable (can get a perfect smoothness) and more serviceable, so it can perform its required functions for a long time.
Bearing : Ceramic balls
Ball Race : Super LAP
Axle : "SG75 taper"
Cup Thread : BC1.37x24T
Shell Width : 68mm
Made-in-Japan, highest grade, high precision ceramic balls are used to ensure super smooth and long-lasting rotation. Cyclists need to adjust power and cadence depending on terrains, so the ceramic bearing is most effective as less energy is required to turn the crank. It offers remarkable performance gain under high load conditions such as competitions.
As SG75 Series use a proprietary taper called "SG75 taper", SG75 crank should only be used on SG75 bottom bracket.
For more detailed information, please check ;
"Important Information on SG75 Taper"
SUPER LAP & CERAMIC BALL
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High performance ultra-low friction lube ensures smooth rotation and maximizes performance of BB-SG75 Super Ceramic.