The e*thirteen BB92 Bottom Bracket lets you install your e*thirteen crankset into mountain bike frames with a press fit BB92 bottom bracket shell. The stainless steel cups press directly into the frame and house dual-row bearings for smooth spinning and longevity. It's works with e*thirteen TRS, XCX, and LG1 cranksets with a 30mm spindle diameter only, but fits both 89. 5 and 92mm wide press fit bottom bracket shells.