RockShox Knob Kit Compression Damper RCT3 SID A/Revelation A1-A3 Bluto A1 2012-2016 Depth-20mm Compatible with Shimano GRX 800 Straight pull hub spokes CheckoutSpec= EC44/EC44 BT3029 Size:128

RockShox Knob Kit Compression Damper RCT3 SID A Revelation A1 A3 Bluto A1 2012 2016 Depth 20mm Compatible with Shimano GRX 800 Straight pull hub spokes CheckoutSpec= EC44 EC44 BT3029 Size:128 Compatible with Shimano GRX 800 series cranksets (FC RX810 1 Ring Position Type Chain Retaining Single Ring Tooth Count 34 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 3 Chainline Hub Compatibility 135 142 MTB Hubs Chainline Hub Compatibility 170 177 Hubs Chainline Hub Compatibility 190 197 Hubs Chainline Hub Compatibility 150 157 DH Hubs Chainline Hub Compatibility 157 Super Boost Hubs Chainline Hub Compatibility 141 148 Boost Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount CINCH