Related product

1-1/8" Upper / 1.5" Bottom

PT-1860 / PT-1860S

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
                  41.8x45°x8(R418) Upper
                  51.8x45°x8(R425) Lower
Material:    Top cover:AL6061     
                  w/AL7075 crown race
Finish:        Anodized 

PT-1860S Crown race ø30mm for 1-1/8" straight steerer

click for drawing - PT-1860
click for drawing - PT-1860S