You might also be interested in these unwin quick release seat clamp.
CX-18 Aluminium Alloy Seatpost Clamp 31.8 mm Quick Release Road Bike Seatpost Clamp (Red)
Keenso
£ 6.48
free shipping
To the product (1 offer)
Cloudpower Bike Seat Clamp, 38mm Bordhap Seatpost Clamp Quick Release Tube Post Collar Anti Slip Aluminium Alloy Seat Tube Lever for Folding Mountain Bicycle
Cloudpower
£ 7.99
free shipping
To the product (1 offer)
Alloy Bicycle Seat Clamp Quick Release Seat Clamp 28.6mm Bicycle Saddle Clamp for MTB and Road Bike (28.6mm)
High-Quality Bicycle Seat Clamp: This Bicycle Seat Clamp is a high-quality product that is designed to securely attach your bike seat to your bike frame. It is also known as a Seat Clamp and is a must-have accessory for any serious cyclist.
