Progressive Shocks
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Joined: Apr 2024
Posts: 59
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From: Darwin
Progressive Shocks
Happy Monday everyone,
I purchased a set of 12” 412 progressive shocks & fitted them to my FLH I’ve bolted them on as per instructions set the sag & the bike is definitely lower it scrapes the mufflers on bends & the shocks are going full travel on bumps.
I’m struggling for ideas & answers.
I purchased a set of 12” 412 progressive shocks & fitted them to my FLH I’ve bolted them on as per instructions set the sag & the bike is definitely lower it scrapes the mufflers on bends & the shocks are going full travel on bumps.
I’m struggling for ideas & answers.
Seasoned HDF Member
Joined: Oct 2019
Posts: 10,500
Likes: 7,097
From: OH
What length shocks did you remove? I believe stock is 12.
I assume 412`s have at least a spring preload adjustment ?
What do the "directions" advise?
Are you a large unit ?
I assume 412`s have at least a spring preload adjustment ?
What do the "directions" advise?
Are you a large unit ?
Last edited by eighteight; Nov 3, 2025 at 03:24 AM.
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Joined: Apr 2024
Posts: 59
Likes: 45
From: Darwin
I removed the original 12” 44 year old shocks, I’ve ridden the bike at all 5 preload settings, I’m 85kg so not a large unit, instructions are pretty basic in regards to what fittings & setting sag etc.
Cruiser
Joined: Nov 2025
Posts: 166
Likes: 67
From: Long Island, New York
oops
I just ran down to the garage an measured my '82 model. I have the wheel off and the swingarm hanging and mine measure 13.5" center to center of the bolt hole. Not 100% sure they're original but they definitely look it.
Sorry, had to edit. You have FLH I have an FLT. Please disregard.
Sorry, had to edit. You have FLH I have an FLT. Please disregard.
Last edited by chizzler; Nov 3, 2025 at 08:04 AM. Reason: I'm an idiot
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