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Lowering Rockshox Forks without removing 24mm air cap/bolt

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Lowering Rockshox Forks without removing 24mm air cap/bolt

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flag Joebohobo
Posted: Mar 2, 2017 at 15:09 Quote
So, I've tried to lower a fork before (Old reba) but my socket rounded off the 24mm bolt so I couldn't get the air shaft out.

I recently got a 140mm Rockshox Revelation RCT3 that I wanted to run at 100mm for my 4X bike (Curtis Racelite) and I wanted to avoid having to remove the 24mm bolt.

After looking at the assembly drawing of the fork in the manual (off of rockshox website) I saw that it look like you should be able to remove the circlip that holds the air assembly in place and then simply pump some air into the fork and it should push the air assembly out as all that holds it in is a vacuum.

It worked!

I removed the lowers as normal and then took the circlip off as normal. Then I attached the pump to the fork and just did a couple of pumps of air then pulled on the air shaft gently, it didn't want to come out but there was certainly a fair bit of movement. Then did about 3 more pumps on the shock pump and gave it a pull and the air assembly came out nice and smoothly.

As for getting the assembly back in, I just pushed it back into the tube, then held down the pressure release button on the shock pump and then pushed the assembly in the rest of the way.

Fork seems to be fine, building up the bike tomorrow or Saturday depending on when the final parts arrive and don't see why it shouldn't hold up when riding Smile

Lowered Rockshox Revelation RCT3 to 100mm
Lowered Rockshox Revelation RCT3 to 100mm
Rev RCT3 at 140mm lowering it to 100mm
Lowered Rockshox Revelation RCT3 to 100mm
flag Staktup
FL
Posted: Mar 4, 2017 at 17:41 Quote
Nice! On a somewhat related topic, I performed my first foam seal and lower leg oil change service today, and I had trouble getting the 24mm cap bolt to engage the threads of the air shaft. The shaft kept puling back, and I kept depressing the schrader valve to release air.

Finally, I added 40 psi which pushed the air shaft up to where I could engage the threads and get the cap bolt back on. None of the manuals and videos I've seen described this issue.

 


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