Ritchey Comp Headset Upper 15.3mm IS52/28 Black L Hardened 12mm round shackle The

Hardened 12mm round shackle The shackle

Refined tread pattern for optimal grip on hard surfaces

Unique chainring shape results in a lighter weight stiffer more durable unit Tooth Count 54/41 Drivetrain Speeds 12 Round or Oval Round Material Aluminum Color Silver Defined Color Silver Direct Mount Type Direct Mount SRAM 8-Bolt Size 54/41T

20mm OD plug/30mm OD end cap (MTB)

Ritchey Comp Headset Upper 15.3mm IS52/28 Black L Hardened 12mm round shackle TheSealed cartridge bearings that drop directly into the head tube Upper includes top cap Lower includes crown race Model Comp Upper S. H. I. S. IS52 28. 6 Stack 8. 3mm Upper Lower Upper Color Black