Single bolt head design.
KONG MING CAR Dropper Seatpost 27.2 / 30.9 / 31.6 mm × 400 mm – 125 mm Travel – Lightweight Aluminum Telescopic Seatpost with Cartridge System & Single-Bolt Clamp for MTB / eBike / BMX (φ31.6mm)
KONG MING CAR Dropper Seatpost 27.2 / 30.9 / 31.6 mm × 400 mm – 125 mm Travel – Lightweight Aluminum Telescopic Seatpost with Cartridge System & Single-Bolt Clamp for MTB / eBike / BMX (φ30.9mm)
BBB Cycling CollarClamp Bike Seatpost Clamb Single Bolt Screw-on Seat Post Clamb for Carbon and Aluminium Seatposts Roadbike, MTB and E-Bike | 31.8 mm (27.2) Black - BSP-88
BBB Cycling Bike Seatpost Clamb Single Bolt Screw-on Seat Post Clamb for Aluminium Seatposts Roadbike, MTB and E-Bike | Black 34.9 mm CarrierClamp BSP-99
BESPORTBLE Aluminum Alloy Bike Seatpost Clamp Single Bolt Anti-Theft Seat Tube Clip for Various Bicycle Models Corrosion-Resistant Lock Secure and Stable Cycling Accessory
BBB Cycling CollarClamp Bike Seatpost Clamb Single Bolt Screw-on Seat Post Clamb for Carbon and Aluminium Seatposts Roadbike, MTB and E-Bike | 34.9 mm (30.9, 31.6) Black - BSP-88
