Quick-release bike tech keeps thieves from stealing saddles
Amazon.com : Bike Seat Post Clamp 31.8mm Aluminum Alloy Seat Tube Clip Bicycle Quick Release Seatpost for Mountain Tube Bike, Black : Sports & Outdoors
How to assemble Nov Design seatpost quick release clamp for Brompton folding bike - YouTube
Installing a quick release seat clamp on your bicycle - YouTube