Progressive fork inserts
Road Master
Joined: Oct 2006
Posts: 1,167
Likes: 20
From: NE Pennsylvania
I installed the monotubes in my '12 Fatboy when I went with the chrome front end kit. Really improved the brake dive and I feel the ride is improved considerably. An added plus is not having to change the oil.
Road Master
Joined: Dec 2016
Posts: 813
Likes: 101
From: Ancaster, Ontario, Canada
Saw this topic discussed recently in another thread.....might have been in the Touring section. Anyways, Progressive would definitely be an improvement, but you might want to research the Legend Axeo cartridges as well. I can’t comment on the Progressives, but there were a couple of riders who said they found them to be quite stiff and switched over to the Legends which they liked better. I’m not offering an opinion, just suggesting more research based on what I have read here on the forum.
Outstanding HDF Member
Joined: Oct 2013
Posts: 2,139
Likes: 700
From: St. Clair Co., MO
I put 'em in the 41mm forks I built for my '02 FXD. Firmer & more controlled than stock with minimal brake dive, but a bit harsh on "square edged" bumps. I attribute that to running a cartridge for a heavier bike with more rake. I'm only running one of the two available preload spacers & am considering giving it a go with no spacers.
Happy with 'em overall. Good springs & Gold Valve emulators would be a better, if more costly solution, but as this was the first set of forks I've been inside, I was a bit leery of the process of fine-tuning the Gold Valves.
Happy with 'em overall. Good springs & Gold Valve emulators would be a better, if more costly solution, but as this was the first set of forks I've been inside, I was a bit leery of the process of fine-tuning the Gold Valves.
Stellar HDF Member
Joined: Mar 2017
Posts: 3,312
Likes: 1,876
From: Conn.
I put 'em in the 41mm forks I built for my '02 FXD. Firmer & more controlled than stock with minimal brake dive, but a bit harsh on "square edged" bumps. I attribute that to running a cartridge for a heavier bike with more rake. I'm only running one of the two available preload spacers & am considering giving it a go with no spacers.
Happy with 'em overall. Good springs & Gold Valve emulators would be a better, if more costly solution, but as this was the first set of forks I've been inside, I was a bit leery of the process of fine-tuning the Gold Valves.
Happy with 'em overall. Good springs & Gold Valve emulators would be a better, if more costly solution, but as this was the first set of forks I've been inside, I was a bit leery of the process of fine-tuning the Gold Valves.
Stellar HDF Member
Joined: Mar 2017
Posts: 3,312
Likes: 1,876
From: Conn.
The not having to change fork oil is cool but was not a big selling point considering its due every 50,000
Outstanding HDF Member
Joined: Mar 2012
Posts: 2,296
Likes: 39
From: Land of the cold....
I have a set of the mono tubes on the way from HogPro now.. looking forward to getting in the bike...I love twistys and from what I've read this is a nice upgrade for that type of riding 
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