We have all the accessories and components you need atEscapa.
TheErgotec Saddle Post Reducer Sleeve (30.8 to 27.2) - 80mmis the part you need to reduce your frame’s diameter so it can accommodate 27.2mm seat posts.
TheErgotec Reducer Sleeve for Seatposts from 30.8 to 27.2 - 80mmis the part you need to reduce the diameter of your frame and accommodate 27.2mm seatposts.