Description This is the OEM stem for Aventon ebikes. The Aventon Stem is not one-size-fits-all; Please be sure to choose the correct Aventon ebike model from the dropdown before adding to cart. Compatibility We carry an adjustable stem. All other stem models purchased are the OEM replacement stem; They are non-adjustable. Pace 350 stem is not compatible with Next-Gen Pace 350 models. Adjustable stem is compatible with Pace 500.2 and Pace 500.3 ebike models