Traditional cup & cone style bottom bracket BB-SG75 Super Ceramic, with loose ceramic ball retainer bearings and special polishing to the races on both spindle and ball cups, by the synergistic effect of them, extremely smooth rotation is realized, used and trusted by many of the Olympic athletes.
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
Special polishing to the races on spindle and ball cups making them stronger and smoother, and produces a synergistic effect with the ceramic ball bearings and realizes extremely smooth rotatio