CBF focuses on designing rear suspension around the Center of Curvature (CC). Until now, most suspension systems have focused solely on the Instant Center (IC). CBF points the chainline and corresponding drive forces around the top of the chainring through 100% of the travel resulting in maximum pedaling efficiency, regardless of where you are in the travel, what terrain you are on, or what kind of power you’re putting down. All the power you put into the pedals goes into turning the rear wheel, allowing the suspension to do its job completely – independent of drivetrain and braking forces and making the sag setting much less critical.