Progressive 412's std vs HD vs changing shock oil
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Grand HDF Member
Joined: Oct 2010
Posts: 4,618
Likes: 290
From: Johnstown, PA
Progressive 412's std vs HD vs changing shock oil
Ok, so this forum is about to cost me more $ again. Looking into some sort of ECONOMICAL shock upgrade, LOL. Can't bring myself to put out big bucks on my 8 year old bike (so no ohlins or 944's)
Just wondering how much of an improvement comes from the 412's, and how to gauge if standard or heavy duty springs are required.
I am 6' and weigh in at 240, and ride 1 up 99% of the time.
I am also wondering if changing the stock shock oil will give me the same results as a 412 switch.
Just wondering how much of an improvement comes from the 412's, and how to gauge if standard or heavy duty springs are required.
I am 6' and weigh in at 240, and ride 1 up 99% of the time.
I am also wondering if changing the stock shock oil will give me the same results as a 412 switch.
Advanced
Joined: Dec 2010
Posts: 61
Likes: 0
From: chicago
I replaced the oil in my 12" shocks with amsoil 10w. huge difference in the way it rides and only cost 20 bucks. very easy to do. that's where I would start. in 6'4" and weigh in at 400. ride 1 up most of the time haven't had the ol' lady on yet with the oil change
Cruiser
Joined: Jan 2010
Posts: 232
Likes: 2
From: lakeland,florida
I put the 412 with hd spring im 6'1 275 lbs and it rides great I called progressive they told me which spring to go with and even told me how much sag I needed for good ride! air shocks are gone no more airing up frontend stills needs air but that may be twice ayear.
Road Captain
Joined: Aug 2013
Posts: 654
Likes: 5
From: oklahoma
i would highly recommend sending them to Bitchin Bagger. they can rebuild them the same height or lower them but they did an awesome job with mine. rode 100% better than stock
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Road Captain
Joined: Jul 2006
Posts: 735
Likes: 5
From: Bluffton,SC
I tried the oil. I used 15 wt big improvement. I just added the same amount that came out I think 11 and 1/2 oz.
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I'm 220lbs, ride solo 95% of the time and got the 12.5" 412s with standard springs. I'm riding at the #3 setting out of 5 and if I load up the bike with gear will need to be at #4 for sure. If you are 240lbs I would go with the heavy duty springs because if you go with standard you are already going to be pretty much maxed out when you are solo. I haven't ridden 2up yet but I know I'm going to be on the bubble of bottoming. 412s are a good upgrade for not a lot of money but I can't comment on the other options only vs stock setup.
