Clamp end be connectted with rear rack. Grade 5 Titanium (TI6AL/4V).
Titanium seatpost clamp/collar 31.6mm (for 27.2mm seatpost)
Stylish Titanium Seatpost Clamp for Brompton A line P line C line (Black)
Titanium Seatpost Clamp Bolt Ø8mm 15–24mm Campagnolo Style Grade 5 Ti CNC
M5 x 20mm Titanium Seatpost Clamp Bolts for Bicycle MTB Road Bike Tuning Grade 5
Bicycle Seat Clamp SeatPost Clamp with Quick Release Lever for Mountain Bike (MTB) or Road 31.8MM 34.9MM (Blue 34.9MM)
Bike Seatpost Clamp with Bolt for Carbon Saddle Rails 7x9mm Oval and 7x7mm Round Steel Rails, Secure Seat Fixation (7x7mm)