Tapered steerers (when offered) are designated by 1.5>1-1/8 inch spec info

Replacement CSU (crown/steerer/upper) units and BoXXer crowns

BoXXer top crown sizing reference (head tube headset): short (3/4 inch drop): under 160mm/tall (2 inch drop): 160-190mm

• TECH SPECS

model	2021 ZEB (A1 ) 27/29", 44mm offset
description	1.5>1-1/8" alloy CSU assembly