SUGINO 75 Super Lap BB-SG75
The "Super Lap" differs from the standard version by adding mirror-polishing to the races on both spindle and ball cups.
Super Lap has mirror finish ball race
11 Ball Retainer
Keirin (NJS) approved bottom bracket
"Superlap" model: includes cups, bearings, lockrings, spindle, shield, bolts
68 x 109mm