Seen at the Sea Otter Classic seems Tavelo is working on a lightweight aero road frame with 40mm tire clearance and UDH. Possibly named the Arden? Skyasports instagram story seems to suggest that is the name but isn’t specifically mentioned elsewhere yet.
Covered in this article:
https://velo.outsideonline.com/road/road-gear/tavelo-sea-otter-unnamed-race-bike/Expected to be under 2500 with handlebar
Higher stack compared to the Tavelo Arow
Medium frame claimed weight of 650g and 340g for the fork
BSA bottom bracket according to gcperformance video
Edit: Most recent information seems to point towards 34mm listed tire clearance. Added photo of geometry chart.