We have all the accessories and components you need at Escapa.
The Ergotec Reducer Sleeve for Seatposts (29.4 to 27.2 mm) – 80 mm is the part you need to reduce your frame’s diameter so it can accommodate 27.2 mm seatposts.
The Ergotec Reducer Sleeve for Seatposts from 29.4 to 27.2 mm - 80 mm is the part you need to reduce the diameter of your frame and accommodate 27.2 mm seatposts.