412 Progressive shocks?
Thread Starter
|
Outstanding HDF Member
Joined: Oct 2006
Posts: 2,257
Likes: 1
From: Papillion Ne 68133
412 Progressive shocks?
What the difference in 412's V/S the stock OEM that were installed at the factory.
My weight is 170 the shocks are set to what ever the factory set them at when the bike was delivered, I haven't noticed any bottoming out.
Why would I want to change to a standard length progressive shock ? What are the advantages?
I don't ride like I stole it!
Tom
My weight is 170 the shocks are set to what ever the factory set them at when the bike was delivered, I haven't noticed any bottoming out.
Why would I want to change to a standard length progressive shock ? What are the advantages?
I don't ride like I stole it!
Tom
Road Warrior
Joined: Jan 2007
Posts: 1,319
Likes: 2
From:
RE: 412 Progressive shocks?
you can adjust your rear shocks they have three settings and usually come on the lowest one you will need a spanner wrench. I would try that first before dumping 200.00 dollars for new shocks , you will need a spanner wrench to adjust the settings . the progressive shaocks have a better dampening rate.
Club Member
Joined: Feb 2007
Posts: 16,320
Likes: 306
From: Boynton Beach, FloriDuh
RE: 412 Progressive shocks?
If you don't ride agressively and don't have a sweet thing sitting behind you, then the factory shocks are probably just fine. On the other hand, what is the point of owning a sportster? I would think the factory shocks should be set on notch 2 or maybe 3 for solo. Later model factory shocks have 5 notches. If you are going to ride 2 up then 412 progressives make a real difference.
Banned
Joined: Jul 2005
Posts: 14,082
Likes: 8
RE: 412 Progressive shocks?
I put mine on to lower the Bike and had heard that the Progressives were much better shocks. To say they are better is a BIG understatement. They are worlds better. they take all the harshness, the slam outta the bumps. You will not be sorry you upgraded to them I assure you. And if you want some get em from, http://www.trak-tek.com/index.html
I can say without reservation, they are the best 200+ bucks I have spent.
I can say without reservation, they are the best 200+ bucks I have spent.
Advanced
Joined: Jun 2006
Posts: 93
Likes: 0
From: Ohio
RE: 412 Progressive shocks?
Look under the "Springs" section on this page for a good explanation of how and why they work.
http://www.calsci.com/motorcycleinfo/Suspension.html
[blockquote]Progressively wound springs will compress perhaps 70 pounds for the first inch, 85 pounds for the second inch, 100 pounds for the third inch, and 120 pounds for the fourth inch. This particular spring would be called a 70 / 120 progressive. The idea here is to make your suspension a little softer for small bumps, and firmer for larger bumps. The progressive springs operate at their lowest weight rating until the closest wound coils bind, then as more and more coils bind, they progressively switch to their high weight rating. Progressive springs allow you to have relatively soft springs for the first inch or so to give a very smooth ride, and very firm springs for the last few inches to give solid handling and absorb large bumps. There is a suspension company called "Progressive Suspension" which manufactures shock absorbers and fork springs, but other companies also have progressively wound springs.[/blockquote]
http://www.calsci.com/motorcycleinfo/Suspension.html
[blockquote]Progressively wound springs will compress perhaps 70 pounds for the first inch, 85 pounds for the second inch, 100 pounds for the third inch, and 120 pounds for the fourth inch. This particular spring would be called a 70 / 120 progressive. The idea here is to make your suspension a little softer for small bumps, and firmer for larger bumps. The progressive springs operate at their lowest weight rating until the closest wound coils bind, then as more and more coils bind, they progressively switch to their high weight rating. Progressive springs allow you to have relatively soft springs for the first inch or so to give a very smooth ride, and very firm springs for the last few inches to give solid handling and absorb large bumps. There is a suspension company called "Progressive Suspension" which manufactures shock absorbers and fork springs, but other companies also have progressively wound springs.[/blockquote]
Road Master
Joined: Sep 2006
Posts: 824
Likes: 3
RE: 412 Progressive shocks?
Using 412s on the rear and replacing the fork springs with Progressives turns the Sportster into almost a touring bike. The smoothness of the ride is unbelievable (no jarring, slamming, or other harshness), yet they are not mushy if you want to get hard on it in the twisties. For me, the best money I've spent on the bike.
Trending Topics
6th Gear
Joined: Feb 2007
Posts: 14
Likes: 0
RE: 412 Progressive shocks?
I owned a 1200S before the 1200R.The stock suspension on the R was very poor vs the S.I installed both the 412s and front springs,what a difference!No one will be sorry if they buy the 412s.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
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
Stage I
Joined: Feb 2020
Posts: 1
Likes: 0
From: India