DescriptionThis Cane Creek 10-Series is great if you want to install a new headset on older Aventon models. While the 10-Series still has the look and feel of the 40-Series, you can save some cash to spend on dropbars or tires.Applications: complete headset assembly comes with a short cover and fits ZS44 frames with 1-1/8" straight forks, such as:Aventon Cordoba pre-2016 modelsAventon Mataro models (older models with straight 1 1/8" head tube and fork)In addition to Aventon products, it can also fit many other makes/models.Notes: does not fit the "modern" Aventon Mataro (versions with tapered head tube)S.H.I.S. Dimensions: ZS44/28.6-top and ZS44/30-bottom, Cane Creek part #BAA0058KSPECIFICATIONSTECH DESCRIPTIONZS44/28.6/H8/K|ZS44/30/H4/KTOP TYPEZS - ZeroStackTOP HEAD TUBE INSIDE DIA.44.00mmSTEM CLAMP DIA.28.6mmTOP STACK HEIGHT8mmTOP BEARING TYPEBlack OxideBOTTOM TYPEZS - ZeroStackBOTTOM HEAD TUBE INSIDE DIA.44.00mmCROWN RACE SEAT DIA.30.015mmCROWN RACE TYPEPolymerBOTTOM STACK HEIGHT4mmBOTTOM BEARING TYPEBlack OxideMATERIAL6061WEIGHT62.79gTECH DESCRIPTIONZS44/28.6/H8/K|ZS44/30/H4/KTOP TYPEZS - ZeroStackTOP HEAD TUBE INSIDE DIA.44.00mmSTEM CLAMP DIA.28.6mmTOP STACK HEIGHT8mmTOP BEARING TYPEBlack Oxide, SealedBOTTOM TYPEZS - ZeroStackBOTTOM HEAD TUBE INSIDE DIA.44.00mmCROWN RACE SEAT DIA.30.015mmCROWN RACE TYPEPolymerBOTTOM STACK HEIGHT4mmBOTTOM BEARING TYPEBlack OxideMATERIAL6061WEIGHT62.79g