Enduro XD15 bearing upgrade kit

To put it simply, Enduro’s XD15 super-stainless, ceramic-hybrid bearings are the only ceramic bearings we would consider for our riders. The magic starts with the races, milled from XD15 aerospace grade, nitrogen-infused stainless steel. Developed by a European consortium and only available through Enduro for cycling applications, XD15 super-stainless bearing races are designed specifically for ceramic balls. These bearings will never pit or rust and should any grit enter the bearing, it will be pulverized to actually polish the bearing ball track. XD15 bearings get faster over time and are guaranteed for life including against corrosion. For riders who find themselves in the most demanding conditions, want to save every last watt, or for those that wish to effectively eliminate bearing maintenance, we recommend upgrading to Enduro’s XD15 wheel bearings.