 The "Virtual Pivot Point" suspension was developed by Jamie Calon and James Klassen for Outland Bikes in the nineties and the associated patents are now owned by Santa Cruz Bicycles.A newer suspension design from Spot Bikes couples a "Living Link" with a conventional VPP or twin link rear suspension system.This design replaces the bottom pivot link with a carbon fiber leaf spring, connecting the front triangle with the rear triangle of the bike.