Joined: Mar 2011
Posts: 457
Likes: 0
From: Chapel Hill
Bikes: Canfield Yelli Screamy, Pivot Mach5, Specialized Roubaix, '65 Hercules, '79 Schwinn Stingray Lil Chic, '68 Schwinn Stingray Fastback, '89 Specialized Allez Epic, '86 Battaglin World Champion
Think about it in reference to a Rockshox dual-air fork. Once the negative spring pressure gets above the positive pressure by a certain psi(say 10 or so), you will notice that the negative spring starts to suck up the travel. This is the same thing you have in the Fox fork, since it is pumped up for a lower weight rider.