Felt’s support have advised me that I can use this seatpost for my 2014 B16: https://www.felt-stuff.com/parts-spares/triathlon-tt/seat-posts-clamps/899/aero-seatpost-da-2011/b-2014-fesp-10-20mm-rear-offset-uci-legal?c=200041
I’d like to hear from anyone who has one to offer and is comfortable posting to the UK.
Cheers!