Product Description
Tapered steerers are designated by 1.5>1-1/8 inch spec infoReplacement CSU (crown/steerer/upper)Fits ZEB A1+, including A2.No sag gradients Diffusion Black Crown TECH SPECS model 2021+ ZEB (A1+) DebonAir, 27.5/29" description 1.5>1-1/8" alloy CSU assembly