BKC-7021 – Press-In, Ceramic-Hybrid, XD15, Flanged, Double-Row Bottom Bracket solution for BB86/92 framesets to BB30 style cranksets – This press-in solution allows you to fit your 30mm cranks directly into your BB86/92 frameset. It′s a tight fit with the limiting factor of just 41mm inner diameter of the BB86/92 bottom bracket shell and it requires a special solution to accommodate for a 30mm BB spindle (just 11mm). By utilizing flanged double-row bearings that press directly into the BB shell, we are able to maximize contact area by doubling the number of balls per side to provide a long lasting solution in an extremely tight space. This unique Enduro XD15 Pro BB solution features XD15 Ceramic-Hybrid cartridge bearings pressed directly into the BB shell, that feature deep-groove raceways allowing for maximum sized Grade 5 Silicon Nitride ceramic balls for for increased contact area and improved performance and longevity. Find out why Bike Radar reported the XD15 Hands down, the best bottom bracket we have ever tested. We are sure you will agree, and with a lifetime warranty there is nothing to lose. The most impressive feature of these bearings is, unlike other bearings, they only get better with use. As the bearings wear-in, the balls actually make the races even smoother. So when compared to other ceramic-hybrid bearings on the market that claim speed and power advantages on day one, Enduro XD15 bearings not only provide the same initial advantages on day one, but will get even faster and smoother with time and use, while the other ceramic-hybrid options will only get slower. We are so confident in the performance of XD15 Ceramic-Hybrid bearings that they carry an unlimited lifetime warranty against wear and corrosion. – Finding the right bottom bracket solution for the ever-growing range of bicycles on the market is not always an easy task. At Enduro we currently offer over 50 different types of bottom brackets for various bottom bracket shell and crankset combinations in multiple price/performance levels. Enduro bearings offers threaded options for BSA, BSA 30, Italian and the robust T47 system. For press-fit bottom brackets we created the oft-copied, thread-together Torqtite bottom brackets as well as press-fit Delrin Cup options. We even offer flanged, double-row bearings to fit 30mm cranksets in BB86 shells!