These threaded replacement thru-axles from Cervelo can be used on any of their disc brake framesets and bikes from 2016-present. These are a direct fit for all threaded frame and fork systems.
Unlike some threaded Cervelo thru-axles these do not feature a lever lock, but a DT-style lever end that slides out over an internal spine and can be used to tighten and then be positioned in the angle you prefer.
Front is 12mm x 127mm