EVO air shocks replacement
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Road Captain
Joined: Aug 2020
Posts: 516
Likes: 119
From: Athens Ohio
EVO air shocks replacement
My old man born to be mild 80" Road King Classis 1998 has always kinda felt rough riding, especially after my no loss pump failed and I quit keeping up on it.
I recently found the first sign of leaking oil from the right rear air-shock (and the boot is split apart)
I put some regulated air 15 psi in after reading that having no air pressure causes a leak, but that seems unlikely, and I probably have leaky lines.
I am currently cleaning the lines and inspecting, but they never rode well to begin with.
Is it true that nearly all 13" touring shocks will fit?
I see a deal on some used 2020 FLHXS that I could afford, part numbers look like 54000093 and 54000094.
Anyone have advise on these? Or alternative suggestions?
Thanks in advance
I recently found the first sign of leaking oil from the right rear air-shock (and the boot is split apart)
I put some regulated air 15 psi in after reading that having no air pressure causes a leak, but that seems unlikely, and I probably have leaky lines.
I am currently cleaning the lines and inspecting, but they never rode well to begin with.
Is it true that nearly all 13" touring shocks will fit?
I see a deal on some used 2020 FLHXS that I could afford, part numbers look like 54000093 and 54000094.
Anyone have advise on these? Or alternative suggestions?
Thanks in advance
Grand HDF Member
Joined: Sep 2022
Posts: 4,461
Likes: 3,846
From: Florida
My old man born to be mild 80" Road King Classis 1998 has always kinda felt rough riding, especially after my no loss pump failed and I quit keeping up on it.
I recently found the first sign of leaking oil from the right rear air-shock (and the boot is split apart)
I put some regulated air 15 psi in after reading that having no air pressure causes a leak, but that seems unlikely, and I probably have leaky lines.
I am currently cleaning the lines and inspecting, but they never rode well to begin with.
Is it true that nearly all 13" touring shocks will fit?
I see a deal on some used 2020 FLHXS that I could afford, part numbers look like 54000093 and 54000094.
Anyone have advise on these? Or alternative suggestions?
Thanks in advance
I recently found the first sign of leaking oil from the right rear air-shock (and the boot is split apart)
I put some regulated air 15 psi in after reading that having no air pressure causes a leak, but that seems unlikely, and I probably have leaky lines.
I am currently cleaning the lines and inspecting, but they never rode well to begin with.
Is it true that nearly all 13" touring shocks will fit?
I see a deal on some used 2020 FLHXS that I could afford, part numbers look like 54000093 and 54000094.
Anyone have advise on these? Or alternative suggestions?
Thanks in advance
Last edited by Rains2much; Feb 24, 2026 at 02:19 PM.
Thread Starter
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Road Captain
Joined: Aug 2020
Posts: 516
Likes: 119
From: Athens Ohio
I see what you mean, the later hand **** adjusted ones apparently handles compression on one side and rebound on the other side, and the less stiff early swingarm may get stressed from that. I see a set of 2005 air shocks for cheap. That might be better. Money is tight.
I have read progressive 412 can be a rough ride, but I doubt it is worse that mine. Costs more than take offs
I have read progressive 412 can be a rough ride, but I doubt it is worse that mine. Costs more than take offs
Grand HDF Member
Joined: Sep 2022
Posts: 4,461
Likes: 3,846
From: Florida
I am not 100% thrilled with my OEM air shocks.. however it did make a really nice improvement rebuilding them for like $15.00. Could try that. I drained mine (OEM 7w) and filled with 10w. I pump them a little fuller than Harley said. They are the same shocks the Goldwings use and their manuals say you can pump them up a bit more.
‘’It was a nice improvement. Worth doing.. I still want better though.
‘’It was a nice improvement. Worth doing.. I still want better though.
HDF Community Team
Joined: Dec 2005
Posts: 5,418
Likes: 2,621
From: NC USA
On ebay look for 54531-92, preferably with the hoses still on them. Drain and refill with 10w as R2m suggested and you'll be good to go.
When you find those fancy take-offs, there is a reason.
When you find those fancy take-offs, there is a reason.
Last edited by t150vej; Feb 24, 2026 at 05:24 PM.
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Road Captain
Joined: Aug 2020
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From: Athens Ohio
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Most 13 inch Touring air shocks should fit. I used a set of air shocks off an 09 Road King on my Evo Dyna and it bolted right on, although I had to put a thick washer on the left side to keep it from hitting the belt guard.
One thing I would also recommend is to ditch the crappy air lines and replace them with Schrader valves. That alone will eliminate 95% of any potential air leaks.
One thing I would also recommend is to ditch the crappy air lines and replace them with Schrader valves. That alone will eliminate 95% of any potential air leaks.
