![Tern Frame Hinge - FBL Gen 1](/sites/default/files/styles/medium_rectangle_1x/public/images/bikes/tech/2015/tech-fbl-1-0.jpg.webp?itok=5XvIyA9t)
FBL Frame Joint
Strong and secure
The FBL (Four-Bar Linkage) Joint is a tried and true design that keeps a frame securely locked. It features a forged and precision machined lever designed to offer a smooth surface for fingers. All other hardware is stainless steel for durability.