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high polish finish
used and trusted by many of the Olympic athletes
8mm dia stem clamps
Spindle: 30mm
Columbus Bicycle Technology is proud sponsor of the 2017 NAHBS
SUGINO SG75 SUPER CERAMIC BB high polish finishTraditional 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.