1 1/8” Internal Headset
o28.6x44x30
Height: 6.4+3=9.4mm
Weight: 77g
Bearings: Sealed AC bearings
41x45°x6.5
Material: AL6061 w/steel
crown race
Finish: Anodized
S.H.I.S.: ZS44/28.6︳ZS44/30
Head Set PT-1808D