THEORY 1-1/8″ INTERNAL SEMI-INTEGRATED SEALED BICYCLE HEADSET – BLACK
1-1/8″ Internal Headsets. Finish: Anodized. Material: AL6061 w/ steel crown race. 41 7.7 45° (R431).
1-1/8″ Internal Headsets. Finish: Anodized. Material: AL6061 w/ steel crown race. 41 7.7 45° (R431).