RockShox Reverb XPLR AXS Service Kit 27.2 600 Hour speed 12sp Color Black Ring Position Type Chain Color Black Ring Position Type Chain Retaining Single Ring Tooth Count 26 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Chainring BCD Sram Direct Mount Offset 6 Chainline Hub Compatibility 135 142 MTB Hubs Chainline Hub Compatibility 150 157 DH Hubs Chainline Hub Compatibility 170 177 Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount SRAM Shimano Dura Ace OT SP41 Housing & Polymer Cable Derailleur SetsPolymer coated stainless steel inner cable reduces the sliding resistance to achieve lighter and quicker operation and is rust resistant top{margin bottom:30px line height:120%