XD-15 ABEC 5 radial Ceramic bearing with 30 mm inner diameter, 42 mm outer diameter, 7 mm thickness and extremely low friction double-lip type sealing without contact.
Want to make your bike faster than any other? Had enough of servicing your ceramic bearings so that they will survive another rainy day race? Would you rather have a bottom bracket outlast your frameset? Then you have arrived at the solution. XD-15 ceramic bearings have it all - hands down the speediest, and longest lasting ceramic bearing available on the market. Nitrogen steel is the secret, precision machined and ground to ABEC-5 tolerances at Enduro's facility in Gilroy, California.
This very special nitrogen infused XD-15 steel material and will not rust or corrode. It is more than 5 times the corrosion resistance of 440C stainless material. The process to make this steel involves remelting a very high grade of martensitic stainless steel from the end of an electrode. This occurs in a highly-controlled remelt chamber while introducing nitrogen gas, producing a homogenous steel free from course carbides and giving ultimate fatigue resistance. A super strong steel made for ceramic balls, XD-15 is the pinnacle in bicycle bearing technology.
Voted "Hands down the best bottom bracket we have ever tested" from Bike Radar, you can find out why. These bearings spin with the very least resistance of anything they have developed to date featuring oversized Grade 3 Silicon Nitride balls. On top of this, they will be spinning with the same ease one year or even two years from now, with longer intervals between servicing. No one else in the bicycle industry offers this combination of speed and durability: XD-15 bearings for wheels, bottom brackets, and drive train.
Manufacturer item code: CXD 6806 VV
Weight supplement: manufacturer spec