Ritchey WCS Switch External Cup Headset - EC44/28.6 Upper EC44/40 Lower 28.6 Threadless BLK Spire I Seatpost 15mm overall length with a

15mm overall length with a 12mm wheel building calculator dimension

10-speed MTB cassette

Compatible but not optimized for 11-speed chains Tooth Count 38 Drivetrain Speeds 12 Round or Oval Round Color Black Defined Color Black Direct Mount Type Direct Mount CINCH Size 38T

Non-slip rubber surface

ZERO EMISSION ENGINEERING

Ritchey WCS Switch External Cup Headset - EC44/28.6 Upper EC44/40 Lower 28.6 Threadless BLK Spire I Seatpost 15mm overall length with aA key component of the Ritchey Switch System the WCS Switch External Cup Headset is designed to specifically work with the Ritchey Switch Stem to route cables wires and hydraulic lines from the handlebar through to the bicycle frame. Cables are routed from the handlebar into the headset conduit which sits on the underside of the Switch Stem and then travel through an opening on the front of the Switch headset spacers before passing through two