Category Archives: Tech Info

Using a Rate-Plate

The term “Rate-Plate” is that name given to an immovable plate placed on the compression side of your shock piston. Rate-Plates’ are generally recommended for bypass shocks, racing and or other high-speed  applications. If you are experiencing high speed shock shaft travel often in your travels you might benefit greatly from the addition of a […]

F-O-A Shock Seal

Arguably the most important component in a shock absorber is its seal. The seal keeps the hydraulic fluid in and just as importantly everything else out. The seals on hydraulic rams were well known and established for many years before the high-performance off-road shock absorber market came into being. And while the tolerances and components […]

F-O-A Shock Rebuild Instructions

(Leave shock pressurized to begin, as it will assist with removing wipercap) Clean shock, and put into soft jawed vice or something to hold it upside-down. Loosen wiper cap with a spanner wrench/channel-lock pliers. Unscrew and slide wiper cap assembly up shock shaft. De-pressurize shock completely. Push sealhead assembly downward into shock to expose snap […]

F-O-A Re-Valving Instructions

(Leave shock pressurized to begin, as it will ease removal of wipercap) Clean shock, and put into soft jawed vice or something to hold it upside-down. Loosen wiper cap with a spanner wrench/channel lock pliers. Slide wiper cap assembly up shock shaft. De-pressurize shock completely. Push sealhead assembly down to expose snap ring. Remove snap […]

F-O-A Patent Pending Seal Head

F-O-A starts out with the longest Teflon shaft bushing in the industry, at a full 1 inch long, it is 33 percent longer giving you more shaft support. F-O-A continues with a double OD O-ring seal. Over time and with use, a single O-ring design can leak. With constant pressure variations causing O-ring flexing, the […]