Angular contact ball bearings made of stainless steel and well thought-out seals ensure a long service life with minimum maintenance in Acros' BSA Bottom Bracket and thus more carefree time on the bike.High quality bearings for your bike - Ride more, worry less!Key Features• Weight: 90g• Compatibility: Hollowtech II• Shell inside ⌀: 1.37" x 24tpi• Shell width: 68/73mm