BIKONE - BB86-92 Bottom Bracket

For PressFit frames with a 41mm bore and a shell width of either 86mm (road) or 92mm (MTB) Often called PF41 

Your frame bottom bracket bore should measure between 40.95mm and 41.00mm. This is Normal. 

If it is smaller than this you will need to consult a bikeshop to have this corrected. If it is between 41.000 and 40.025 you can use a light retaining compound like loctite 603. If your frame has become oversized upto 41.10mm you can use the BIKONE Oversized solutions. Beware! Your frame may not be oversized on both sides. 

Available in Ceramic or Steel Bearings and for Shimano (24mm) SRAM (29mm) cranks

Hybrid Ceramic Bearings, meaning Steel Races, with Ceramic Balls. Steal Bearings are all steel. Both made to ABEC 5 / P5 Precision Tolerance. The bearing uses 2RS (Two Rubber Seals) 

For SRAM DUB wide cranksets you will need an additional spacer kit