external aluminium CNC machined bearings pressed-in, 2 industrial ball bearings, only 89 g;for Shimano HOLLOWTECH II bottom bracket (not original replacement part Shimano);Outer 41 mm/inner 24 mm, universally suitable for race bike width 86.5 mm and 89.5 MTB/92 mm;with water-resistant plastic -. inner sleeve for MTB with adapter ring 2.0 mm;Single box

• Mighty Pressfit 359370 Bottom Bracket Bb-p 41/ 24 Black
• Black

Mighty Pressfit 359370 Bottom Bracket Bb-p 41/ 24 BlackMighty