Motorcycle Fork Rebound Piston Mounting Posts

Motorbike front forks aren't just the two outer tubes you see - there's a separate internal cartridge doing the real work. Our closed vs open chamber article explains more - but sliding in the middle of that cartridge, with a reb adjuster assembly on the bottom & damping piston parts up top, is a fork cartridge rod.

At the top of a cartridge rod assembly is one of these piston holder towers, with the piston parts & valving shim stacks locked onto the threaded upper post portion using a mechanical locknut.

The rebound damping adjustment is inside the axle feet at the bottom of the fork lower leg tube. The clicker presses an inner pushrod - which loosens or tightens the stack on the other end of the hollow cartridge shaft. By adjusting oil flow you change damper resistance - learn how to use your clickers.