1-1/8" Upper / 1.5" Bottom

F-13BHS / F-11BHS

ZS44/28.6 | ZS56/40

1. 1/8” Upper / 1.5” Bottom
upper 5/32"x22, Lower 3/16"x23
Steel w/ alloy top cover
Crown race ø30 mm for 1 1/8" straight steerer
F-11BHS Lower cup OD 55mm 

click for drawing - F-13BHS
click for drawing - F-11BHS