Pinhead Seat Collar Locking Seatpost Clamp: Universal with Locking Bolt And Key

Two of the loudest alarms on my bike are set up inside the seat with several strands of bailing wire. The quick release was a weakness.;

Only takes 1 minute to install. Peace of mind!;

Fits my folding 26er bicycle but does not fit my 20 inch folding bicycle.;

I've owned 2. First one had a ratchet attachment which made it easier to tighten but it stripped in first 2 weeks and saddle rotated and slid on very short commute. Bought this style and it works but it is such a hassle to tighten or adjust. A 2" piece which doesnt fully attach to the pin just doesn't provide any torque to tighten and worse yet your hands slips a ton and you can end up with a slight flesh wound.

In less than 8 weeks of use zero stolen saddles though so there is that.;

They work great on my commuter bike. This is the 2nd time I have bought this kind of product. Pinhead makes a solid product the best I have seen on the market.
This is a lightweight solution for your security needs. This is great for urban areas or anywhere where security is a concern.;