progressive 412 shocks
Moderators: the2knights, Highway Rider
- Neal
- Tourer
- Posts: 233
- Joined: Tue Feb 26, 2008 3:03 pm
- 17
- Current bike(s): 2001 Voyager, 2002 Voyager
- Location: Evart, Michigan
- Has liked: 0
- Been liked: 1 time
- Contact:
progressive 412 shocks
Trying to remember what it is we need to do to be able to install these on the XVII. Anybody remember?
Dealer for all Air Rider products, and Nolan helmets and headsets.
- SgtSlag
- King of the Road
- Posts: 1065
- Joined: Mon Oct 04, 2010 10:04 pm
- 14
- Current bike(s): 1993 Voyager XII (2010)
(2006-2012: 1979 Honda CB750K)
(2008-2010: 1983 Kawasaki 440LTD, belt drive) - Location: Minnesota
- Has liked: 23 times
- Been liked: 248 times
Re: progressive 412 shocks
I'm not sure what you mean. The 412's are easy to install, assuming you order them for the XII (correct length). They simply slip on, then put the nuts on, to secure them. Can you be more specific as to what you are inquiring about? The 412's are non-air shocks. Cheers!
SgtSlag
1993 Voyager XII
1993 Voyager XII
- cranky
- King of the Road
- Posts: 1037
- Joined: Wed Jul 06, 2016 12:36 am
- 8
- Current bike(s): 2003 Voyager
- Location: San Jose, KalEfornYa
- Has liked: 303 times
- Been liked: 80 times
Re: progressive 412 shocks
..... and the correct length is???? TIA...
'03 Voyager - http://tinyurl.com/mqtgpwp VROC pics of Gina
Cranky - Bill Snodgrass AVA # 6544. VROC # 16804
Cranked >128K miles, Mtn bike-no motor!!!
San Jose, KalEfornYa
Cranky - Bill Snodgrass AVA # 6544. VROC # 16804
Cranked >128K miles, Mtn bike-no motor!!!
San Jose, KalEfornYa
- Neal
- Tourer
- Posts: 233
- Joined: Tue Feb 26, 2008 3:03 pm
- 17
- Current bike(s): 2001 Voyager, 2002 Voyager
- Location: Evart, Michigan
- Has liked: 0
- Been liked: 1 time
- Contact:
Re: progressive 412 shocks
I thought I remembered something about the mounts needed to be revised or something.
Dealer for all Air Rider products, and Nolan helmets and headsets.
- VoyKimmer
- Grand Tourer
- Posts: 531
- Joined: Mon Mar 03, 2008 12:47 am
- 16
- Current bike(s): 2002 Voyager XII
1996 Voyager XII - Location: Gurnee, Illinois
- Has liked: 0
- Been liked: 106 times
Re: progressive 412 shocks
Yes I believe the left bottom mount where it mounts to the final drive spacer has to be ground down shorter a little but it’s been so long I forgot. There’s a suggestion on this sight somewhere from Chris In Kansas City about it. I remember doing it.
- Lucasind
- King of the Road
- Posts: 1791
- Joined: Mon Dec 17, 2012 5:44 pm
- 12
- Current bike(s): 2003 Voyager 1200
1988 Voyager 1200
1985 Voyager 1300
2008 Concourse 1400
1985 LTD 1100
1981 CSR 1000
1981 CSR 650
1979 KZ 650
1973 XL 350
1988 Eliminator
1975 CB 125
1965 S 65
and a bunch of parts ! - Location: Toledo, OH
- Has liked: 198 times
- Been liked: 69 times
Re: progressive 412 shocks
....when I ordered /installed mine years ago .....the progressives come with a bunch of various size slip on spacers /shims to make them fit any bile , nothing needs to be ground down ,or altered in any way.....
90% OF ANY JOB ...IS GETTING STARTED !
- Neal
- Tourer
- Posts: 233
- Joined: Tue Feb 26, 2008 3:03 pm
- 17
- Current bike(s): 2001 Voyager, 2002 Voyager
- Location: Evart, Michigan
- Has liked: 0
- Been liked: 1 time
- Contact:
Re: progressive 412 shocks
Okey Dokey ...Thanks guys
Dealer for all Air Rider products, and Nolan helmets and headsets.
- SgtSlag
- King of the Road
- Posts: 1065
- Joined: Mon Oct 04, 2010 10:04 pm
- 14
- Current bike(s): 1993 Voyager XII (2010)
(2006-2012: 1979 Honda CB750K)
(2008-2010: 1983 Kawasaki 440LTD, belt drive) - Location: Minnesota
- Has liked: 23 times
- Been liked: 248 times
Re: progressive 412 shocks
The correct length is one way to get the correct part; the other method is to order by bike make, year, and model. Been years, don't remember the correct length.
NOTE: if you plan on riding two-up, get the Heavy Duty Springs! I made the mistake of ordering the regular duty springs... Blew out one shock within a month, due to bottoming out, repeatedly (Ouch!!!). Had to order a second set, with the Heavy Duty Springs -- been riding those for 5+ years, without issue. They are much firmer, but we hardly ever bottom out anymore.
I, too, did not need to grind anything. They were easy to install. Cheers!
NOTE: if you plan on riding two-up, get the Heavy Duty Springs! I made the mistake of ordering the regular duty springs... Blew out one shock within a month, due to bottoming out, repeatedly (Ouch!!!). Had to order a second set, with the Heavy Duty Springs -- been riding those for 5+ years, without issue. They are much firmer, but we hardly ever bottom out anymore.
I, too, did not need to grind anything. They were easy to install. Cheers!
SgtSlag
1993 Voyager XII
1993 Voyager XII
- Lucasind
- King of the Road
- Posts: 1791
- Joined: Mon Dec 17, 2012 5:44 pm
- 12
- Current bike(s): 2003 Voyager 1200
1988 Voyager 1200
1985 Voyager 1300
2008 Concourse 1400
1985 LTD 1100
1981 CSR 1000
1981 CSR 650
1979 KZ 650
1973 XL 350
1988 Eliminator
1975 CB 125
1965 S 65
and a bunch of parts ! - Location: Toledo, OH
- Has liked: 198 times
- Been liked: 69 times
Re: progressive 412 shocks
I recall "cushman eagle" Loren saying he has the HD 412's on his bike , too stiff for his liking ....he would likely sell them to you Neal .....I suppose you could talk with him about that at the AVA rally next week , unless you plan on having yours replaced before you leave .....
90% OF ANY JOB ...IS GETTING STARTED !
-
- King of the Road
- Posts: 2012
- Joined: Sat Jan 22, 2011 10:08 pm
- 14
- Current bike(s): '99 Kawasaki Voyager 1200
1958 Cushman Eagle restoration has been finished,and have put 3030 miles on her! - Location: Orrville,Ohio
- Has liked: 881 times
- Been liked: 300 times
Re: progressive 412 shocks
Tony,I made the mistake of putting the 416s on my bike
They are about like taking a piece of 1/4 x 1 strap of steel,drilling a hole in each end and bolting them on
I bought them because I liked the adjustability of the original shocks,and as the 416s are advertised as air shocks,I thought I would like them!

They are about like taking a piece of 1/4 x 1 strap of steel,drilling a hole in each end and bolting them on

I bought them because I liked the adjustability of the original shocks,and as the 416s are advertised as air shocks,I thought I would like them!
'99 Voyager VXII,'58 Cushman Eagle
- Lucasind
- King of the Road
- Posts: 1791
- Joined: Mon Dec 17, 2012 5:44 pm
- 12
- Current bike(s): 2003 Voyager 1200
1988 Voyager 1200
1985 Voyager 1300
2008 Concourse 1400
1985 LTD 1100
1981 CSR 1000
1981 CSR 650
1979 KZ 650
1973 XL 350
1988 Eliminator
1975 CB 125
1965 S 65
and a bunch of parts ! - Location: Toledo, OH
- Has liked: 198 times
- Been liked: 69 times
Re: progressive 412 shocks
...oops , my bad ....I guess you don't ever want to gain all that weight you lost , to compensate ! LOL
90% OF ANY JOB ...IS GETTING STARTED !
-
- King of the Road
- Posts: 2012
- Joined: Sat Jan 22, 2011 10:08 pm
- 14
- Current bike(s): '99 Kawasaki Voyager 1200
1958 Cushman Eagle restoration has been finished,and have put 3030 miles on her! - Location: Orrville,Ohio
- Has liked: 881 times
- Been liked: 300 times
Re: progressive 412 shocks
Tony,you are certainly right about keeping my weight down


We plan to see you June 23 about 5:30
'99 Voyager VXII,'58 Cushman Eagle
- chevyman1
- Board Member
- Posts: 731
- Joined: Sat Jun 06, 2009 5:59 pm
- 15
- Current bike(s): 1990 Kawasaki Voyager XII
1991 Kawasaki Voyager XII
1993 Kawasaki Voyager XII
1972 Yamaha LS2 100cc twin 2 stroke - Location: Myerstown, Pa.
- Has liked: 0
- Been liked: 16 times
Re: progressive 412 shocks
If you don't mind spending a little more money the Race tech rear shocks are much better and a lot more adjustable .
I think AVA members get a discount, not sure if they still give it
]
I think AVA members get a discount, not sure if they still give it
]

President - Mid-Atlantic Voyagers
1990 Voyager XII
1991 Voyager XII (Team Green)
1972 Yamaha LS2 (100cc Twin 2stroke)
Voyagers Voice editor SEND ME STORIES AND PICTURES PLEASE
to. (kew427@comcast.net)
1990 Voyager XII
1991 Voyager XII (Team Green)
1972 Yamaha LS2 (100cc Twin 2stroke)
Voyagers Voice editor SEND ME STORIES AND PICTURES PLEASE
to. (kew427@comcast.net)
- mayhem8
- Cruiser
- Posts: 97
- Joined: Thu Jul 23, 2020 1:11 am
- 4
- Current bike(s): 2003 Kawasaki Voyager 1200
- Has liked: 2 times
- Been liked: 24 times
Re: progressive 412 shocks
I just picked up a 2003 Voyager XII and it has the stock rear shocks as far as I can tell and has 54K on the bike. Most of the time the ride is OK, but 2-up on some backroads sounds/feels like I'm bottoming out the rears with 34 PSI in the shocks on some relatively minor bumps. The manual said 36 PSI was I belive the max so may add a little more air, but sounds like some progressive 412's may be in my future.
- Neal
- Tourer
- Posts: 233
- Joined: Tue Feb 26, 2008 3:03 pm
- 17
- Current bike(s): 2001 Voyager, 2002 Voyager
- Location: Evart, Michigan
- Has liked: 0
- Been liked: 1 time
- Contact:
Re: progressive 412 shocks
Just add enough air so there's no give when you get on it. then start letting air out until you feel it move. Never mind that 36 pounds stuff. I use 40 solo and from 50 to 70 when 2 up and with a trailer. Never have had any trouble, even with 1 or
2 hundred thousand miles.
2 hundred thousand miles.
Dealer for all Air Rider products, and Nolan helmets and headsets.
- HMB Don
- Past Board Member
- Posts: 757
- Joined: Thu Apr 10, 2008 1:44 am
- 16
- Current bike(s): 2012 Voyager 1700
- Location: Wilmington, NC
- Has liked: 0
- Been liked: 82 times
Re: progressive 412 shocks
I understand your dilemma. When I first got my 1200 it rode like crap crap. Until I started running 50 lbs and #3 solo, 55lbs and #4 rebound double. I always check air pressure when on the centerstand.
Don Medina
NorCal Voyagers Club
2012 Voyager 1700
NorCal Voyagers Club
2012 Voyager 1700
- mayhem8
- Cruiser
- Posts: 97
- Joined: Thu Jul 23, 2020 1:11 am
- 4
- Current bike(s): 2003 Kawasaki Voyager 1200
- Has liked: 2 times
- Been liked: 24 times
Re: progressive 412 shocks
I got the owner's manual with the bike and they recommend a max of 36 PSI in the rear shocks, but if that doesn't do it and I'm potentially looking at new shocks anyway, definitely worth trying a bit more. Between the Mrs and I we're probably close to 420 lbs total with helmets and all.
I also didn't check it on the centerstand because I couldn't get it up on the centerstand. I just realized that the centerstand is like 2 parts and one needs to come first. Got it up on the stand now and put 35 PSI in and will try that solo the next day it actually stops raining and I have a break to give it a try.
I also didn't check it on the centerstand because I couldn't get it up on the centerstand. I just realized that the centerstand is like 2 parts and one needs to come first. Got it up on the stand now and put 35 PSI in and will try that solo the next day it actually stops raining and I have a break to give it a try.
- mayhem8
- Cruiser
- Posts: 97
- Joined: Thu Jul 23, 2020 1:11 am
- 4
- Current bike(s): 2003 Kawasaki Voyager 1200
- Has liked: 2 times
- Been liked: 24 times
Re: progressive 412 shocks
BTW - Thanks for the input. Good to know that I can just add more air. I have to believe that running higher pressure has got to be better than bottoming out the shocks. I'm about 230 lbs alone, dressed for riding.
While I have it up on the center stand I may go ahead and add more air.
While I have it up on the center stand I may go ahead and add more air.
- SgtSlag
- King of the Road
- Posts: 1065
- Joined: Mon Oct 04, 2010 10:04 pm
- 14
- Current bike(s): 1993 Voyager XII (2010)
(2006-2012: 1979 Honda CB750K)
(2008-2010: 1983 Kawasaki 440LTD, belt drive) - Location: Minnesota
- Has liked: 23 times
- Been liked: 248 times
Re: progressive 412 shocks
One of the first things to do with a new-to-you bike, is to change ALL of the fluids... I hope I did not over-emphasize that point.
Have you changed the oil in the OEM shocks yet? That makes a huge difference, possibly putting off your new shocks, order. Make certain you change out the fork oil, as well. Suspension fluid changes are critical, and often overlooked, and neglected.
After the fluid changes, you might have a bike that runs and feels like it's a new bike, off of the showroom floor. (Well, maybe not that extreme of a transformation. But it likely will show some drastic improvements, at least.) Cheers!


Have you changed the oil in the OEM shocks yet? That makes a huge difference, possibly putting off your new shocks, order. Make certain you change out the fork oil, as well. Suspension fluid changes are critical, and often overlooked, and neglected.

After the fluid changes, you might have a bike that runs and feels like it's a new bike, off of the showroom floor. (Well, maybe not that extreme of a transformation. But it likely will show some drastic improvements, at least.) Cheers!

SgtSlag
1993 Voyager XII
1993 Voyager XII