Trekk Seat Collar turtle one for the 25mm diameter

one for the 25mm diameter stanchions and one for the 26mm stanchions

Their large platform

The 50 % smaller packed size makes it also a spare tube which fits in every pocket

Extralight casing

pick up a couple spare hitches and install them on the extra bikes so the hitch doesn’t need to be un-installed when swapping bikes

Trekk Seat Collar turtle one for the 25mm diameterDescription Mount a rack to any bike with this lightweight adapter that adds two M5 threaded mounting eyelets to almost any frame. Specs Construction Forged aluminum. Mounting System Replaces stock seatpost collar found on most bikes. Features Clamp design minimizes stress on frames and seatposts. Ideally suited to bicycles with alloy or steel seatposts. Creates two 5mm upper rack eyelets on almost any frame.