EnduroMra-2437 2Rs - Angular Contact, Id=24 Od=37 W=7 ABEC 3 Mra-2437 2Rs - ACB, Id=24 Od=37 W=7 ABEC 5,

This is my first bottom bracket use of angular bearings. Regular bearings load at the top and bottom when pedaling. These angular bearings are smooth pedaling all around which feels different than regular bearings.

It's a bearing, nothing really special other than angular contact. Water still gets past the seal.