1-1/8" Upper / 1-1/8" Bottom

PT-1810

ZS42/28.6 | ZS42/30

1-1/8" Internal Headset
ø28.6x42x30

Height:        10.9+4=14.9mm
Weight:       66g
Bearings:     Sealed AC Bearings
                    39x45°x6.5(R411)
Material:      Top cover: AL6061
                    w/ AL7075 crown race
Finish:          Anodized

click for drawing