The Ultimate Bearing Race Material
XD-15 Stainless Steel
XD-15 ceramic bearings utilize an advanced stainless alloy that is unique in it’s corrosion resistance and strength.
XD-15 is a very special nitrogen infused steel material that will not rust or corrode. Even running in salt water or any caustic nutrition drink you can spill, it will not be degraded or affected. Even dirt or sand inside will not wear it out; it will simply polish the races smoother.
The manufacturing process to produce this alloy involves re-melting a very high grade of martensitic stainless steel from the end of an electrode. This occurs in a highly-controlled re-melt chamber while introducing nitrogen gas, producing a homogenous steel, free from course carbides and giving ultimate fatigue resistance.
Our XD-15 bearings combine corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 3 ceramic balls in a proprietary process that results in the ultimate high performance bearing setup.
When compared to other ceramic-hybrid bearings on the market that claim speed and power advantages on day one, Enduro XD-15 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.
Enduro XD-15 bearings come with a lifetime limited warranty to the original owner. You will not only save watts, you will also save maintenance time. XD-15 is the pinnacle in bicycle bearing technology.