IS42/28.6 | IS52/40
Integrated, 1-1/8" Upper / 1.5" Bottom for different OD headtube
ø28.6x41.8x51.8x39.8 (conical cone OD size ø46mm)
Height: 8.8+1=9.8mm (top cover H:8mm )
Weight: 74g
Bearings: Sealed AC Bearings
41.8x36°x8 (R449) Upper
51.8x36°x8(R438) Lower
Material: Top cover: AL6061
w/AL7075 crown race
Finish: Anodized
click for drawing