e*thirteen Press Fit Bottom Brackets- Adapts all e-thirteen and older Fifteen.G cranks to BB89.5 BB92 frames - Custom angular contact bearings TiNi models feature Ti Nitride races - EV-8015 includes chainline spacer kit for LG1 and non-APS cranks- e*thirteen's BB92 bottom bracket uses industry-exclusive dual-row bearings to fit big performance into a small BB shell- A center tube helps seal the BB shell- For 41mm ID pressfit frames- Bearings feature high-performance seals, and a custom grease specification delivers supreme durability and smooth spinning performance