jrusell
Well-Known Member
That part is the piston (for lack of a better term), of the anti- bottoming device. The upper part of the cartridge with the 4 tangs you are making a tool for is actually the bottom out cone.
This small piston is held to the damper rod by circlips. When you get close to full compression this piston starts to enter the bottom out cone and is a tight fit. Oil is trapped in this bottom out cone below the piston and has to squeeze out the small gap around the piston. This resistance is the bottom out protection built into your fork.
So yes this slides down into the top portion when you use the tool and does not cause any interference. In the last picture of my post above showing the cone the piston is in the bottom of the cone and can't be seen.
Here are a few other pics.
1st pic notice the one on the left it can't be seen, but on the right it is just visible sticking out of the bottom out cone.
2nd pic the bottom out piston completely disappears when the fork is fully compressed.
This small piston is held to the damper rod by circlips. When you get close to full compression this piston starts to enter the bottom out cone and is a tight fit. Oil is trapped in this bottom out cone below the piston and has to squeeze out the small gap around the piston. This resistance is the bottom out protection built into your fork.
So yes this slides down into the top portion when you use the tool and does not cause any interference. In the last picture of my post above showing the cone the piston is in the bottom of the cone and can't be seen.
Here are a few other pics.
1st pic notice the one on the left it can't be seen, but on the right it is just visible sticking out of the bottom out cone.
2nd pic the bottom out piston completely disappears when the fork is fully compressed.