Progressive Fork Springs
Tourer
Joined: Dec 2007
Posts: 437
Likes: 0
i installed these springs with regular fork oil and the were a little stiff for my weight (175). I cut the spacer about a 1/2 inch to decrease the preload and the stiffness eased up. This also lowered the bike about an inch. I have works performance shocks on the rear. Handles great now.
Road Warrior
Joined: Jul 2007
Posts: 1,443
Likes: 3
From: Sasser, GA
I run Progressive fork springs (with heavier fork oil) along with Ted Tine shocks, and it eats curves so much better now on top of eliminating the diving during hard braking. But I'm actually thinking of going a different route on the forks as these don't seem to handle rough roads so well (get stiff so quick it feels like I don't have enough travel). On smooth roads they're fine. They're definitey an improvement over stock.
Elite HDF Member
Joined: Jun 2006
Posts: 3,572
Likes: 5
From: Templeton California
I have the same set up Progressive 412s HDs in the rear and their standard length springs up front with 15wt oil.I like the firmer ride and if I had to do it again I'd go with 20wt.The combination of the two along with dropping the front about 1/2" by sliding up the tubes has all but eliminated the high speed wobble I was getting with the stock suspension.
Road Captain
Joined: Mar 2008
Posts: 655
Likes: 0
From: Monroe, LA
I had Progressive 440's on the back and decided to go with Progressive springs on the front, I used 1" shorter for a more slammed look. The ride is significantly better and I don't seem to have the brake "dive" issue everyone else mentioned.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Road Master
Joined: Jul 2005
Posts: 916
Likes: 3
From: Mauldin, SC
Davidsdad,
From progressive's website home page, select 'Product Search' then click your year, make and model. This should bring up a new pop up window that has a front suspension section listing front spring (11-1525) and lowering kit (10-1566).
Maybe you have a pop up blocker that is blocking the pop up window?
From progressive's website home page, select 'Product Search' then click your year, make and model. This should bring up a new pop up window that has a front suspension section listing front spring (11-1525) and lowering kit (10-1566).
Maybe you have a pop up blocker that is blocking the pop up window?
