RockShox ZEB A1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 150 mm ZEB A1+ MFPN=BAA1189R Bearing race material is AISI

Bearing race material is AISI 52100 chrome bearing steel hardened to Rc 60-65

The other waxes on this list areexcellent as well

Finite Finish Base Structure Tool Press Rollers without gears

Cane Creek Integrated 41

}RockShox RUDY Ultimate XPLR Race Day 2 Suspension Fork - 700c 40 mm 12 x 100 mm 45 mm Offset Gloss Black A2

RockShox ZEB A1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 150 mm ZEB A1+ MFPN=BAA1189R Bearing race material is AISIRockShox ZEB A1+ DebonAir+ Buttercup Air Spring Assembly Upgrade Kit 150 mm. The new DebonAir+ is built to strike the perfect balance of what riders really want: butter like small bump feel increased air volume to add support throughout the travel and higher overall ride height for more confidence when things get steep.