Sugino SG75 Super Ceramic Bottom 109mm Bracket  £234.99

The SG75 bottom bracket available only in English threading and is Keirin certified (NJS). The "Super Lap" differs from the standard version by adding mirror-polishing to the races on both spindle and ball cups (a finish that even Campagnolo hasn't offered in many years).

• Super Lap has mirror finish ball race.
• 11 Ball Retainer.
• 109mm Ni-Cr-Mo Steel axle.
• English thread.
• Supplied with crank bolts.
• Silicon nitride ceramic balls.
• Weight - 285g.