Vincita Rack Mount Seatpost Clamp - For Bike Without Rear Rack Threaded Hole Fixation - Suitable With Seatpost Diameter 27.2 mm (Seatpost Tube 31.8 mm) - Lightweight -mountain, Road, Folding Bicycle.

Vincita Rack Mount Seatpost Clamp - For Bike Without Rear Rack Threaded Hole Fixation - Suitable With Seatpost Diameter 27.2 mm (Seatpost Tube 31.8 mm) - Lightweight -mountain, Road, Folding Bicycle.