PT-1866B-078 ZOOM

IS52/28.6 IS52/40

Internal Cable Routing System (Internal Headset)

1.5” upper/1.5”bottom for Tapered fork 1 1/8”-1.5”

Φ28.6*52*52*39.8

Height :9.7+1=10.7mm

Bearings: Sealed AC bearings 52*45°*H7(R457B)

Material: W/AL-7075 crown race

Headtube Bearing Seat depth upper 8.3 Lower 7

Option:PT-1867B-078 ③compression ring(NYLON PAG+30%GF)