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› Setting Up the S40 Suspension
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Setting Up the S40 Suspension (Read 2129 times)
Gary_in_NJ
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Re: Setting Up the S40 Suspension
Reply #90 -
09/26/20 at 06:57:11
Please note that the bushings that Dave provided on that eBay link show different styles and materials for bushings. The correct type or the simple metal ones without flanges. Also take note of the ID and OD; the ID needs to be 14mm while the OD needs to be the same as the eye-opening in the shock.
Member tpyles59 has given the correct and reasoned advice.
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A life-time student of motorcycling.
LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS
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LANCER
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Re: Setting Up the S40 Suspension
Reply #91 -
09/26/20 at 09:54:56
S Rider wrote
on 09/25/20 at 18:27:10:
Not sure! I just want to know what others have done. It's not helpful when many have put these shocks in their Savage and used 14mm inserts but no one is willing to provide where they got it from. Progressive does not provide much help. They just say that there is no shocks for an S40 2014.
Any help is appreciated!
We can’t ask by brand/model, we choose which shock we want based upon budget, then spring rate, and then just tell them you need the 14mm inserts.
If they insist on asking what bike it’s for say it’s a custom application, which it is.
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S Rider
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Re: Setting Up the S40 Suspension
Reply #92 -
10/01/20 at 08:27:36
Has anyone used 412-4070C?
412-4232C is not available for at least a month.
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S Rider
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Re: Setting Up the S40 Suspension
Reply #93 -
10/01/20 at 08:30:00
Gary_in_NJ wrote
on 09/26/20 at 06:57:11:
Please note that the bushings that Dave provided on that eBay link show different styles and materials for bushings. The correct type or the simple metal ones without flanges. Also take note of the ID and OD; the ID needs to be 14mm while the OD needs to be the same as the eye-opening in the shock.
Member tpyles59 has given the correct and reasoned advice.
Thank you. This makes sense.
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S Rider
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Re: Setting Up the S40 Suspension
Reply #94 -
10/01/20 at 09:05:03
Did a bit more research and looks like 412-4056C is the exact one as 412-4232C but with the full cover. More pricey, but I'm sure it will look great.
Here's the full spec for Progressive shocks:
https://www.progressivesuspension.com/assets/files/7100-105-Specs-And-Tech-In...
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Gary_in_NJ
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Re: Setting Up the S40 Suspension
Reply #95 -
10/01/20 at 13:07:10
They should work. There are many 412 series shocks with the same exact specs (11 in overall length, 2 in travel, 90/130 springs, eye-to-eye mounting). I have to assume that the difference is in the size of the mounting holes. As long as you have confirmed that the holes are 14mm, you should be good to go. Make sure you post a ride report.
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A life-time student of motorcycling.
LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS
My LS650=>
http://suzukisavage.com/yabb2.2/Attachments/Left.JPG
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LANCER
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Re: Setting Up the S40 Suspension
Reply #96 -
10/01/20 at 13:27:59
When dealing with Progressive we cannot choose a shock for the Savage/S40 since it was not listed in the catalog, at least when I last talked with them.
You choose a shock you want and then tell them you need the
14mm inserts
for them for a custom bike project
.
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S Rider
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Re: Setting Up the S40 Suspension
Reply #97 -
10/01/20 at 14:38:20
LANCER wrote
on 10/01/20 at 13:27:59:
When dealing with Progressive we cannot choose a shock for the Savage/S40 since it was not listed in the catalog, at least when I last talked with them.
You choose a shock you want and then tell them you need the
14mm inserts
for them for a custom bike project
.
The people I have found on their call cannot tell me what they have. I have ordered the shocks. I will call them when I get it.
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S Rider
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Re: Setting Up the S40 Suspension
Reply #98 -
10/06/20 at 08:16:24
VortecCPI wrote
on 05/01/19 at 14:14:54:
I just installed Progressive Suspension part number 11-1153 fork springs in my wife's 2012 and it really helped (Thank you Gary). The stock fork springs are too light and have way too much preload.
Now the bike is much more compliant over small stuff yet resists brake dive and bottoming. It used to be like a pogo stock and was constantly using up way too much travel up front. Just coming to an easy stop caused the forks to use up a bunch of travel.
I used the bare minimum for spring preload (2-3/16" spacer) and Race Sag is 25% with my 150 pounds on it. Still could use a lot more rebound damping.
We often ride two-up and the bike has saddle bags so the stock forks were really awful. This was a fast and easy way to make the forks much better.
HIGHLY recommended...
Did you cut down the size of the metal spacer, or did you use a shorter PVC?
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Gary_in_NJ
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Re: Setting Up the S40 Suspension
Reply #99 -
10/06/20 at 08:38:36
You can do either. Cutting PVC is easy to do on a chop saw.
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A life-time student of motorcycling.
LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS
My LS650=>
http://suzukisavage.com/yabb2.2/Attachments/Left.JPG
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S Rider
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Posts: 15
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Re: Setting Up the S40 Suspension
Reply #100 -
10/06/20 at 09:06:47
Gary_in_NJ wrote
on 10/06/20 at 08:38:36:
You can do either. Cutting PVC is easy to do on a chop saw.
Thanks, Gary. Your advice has been very helpful. I had a question about oil level.
I saw you mentioned 120mm for the oil. I have purchased a 15W good quality oil. Do I measure 120mm from the top of the fork to the level of the oil? Or should I just replace it with about the 14.25 Oz. approx amount that I removed from each fork?
Note that I weigh about 170-175 and mostly street riding and on rare occasion on the Freeway.
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Gary_in_NJ
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Re: Setting Up the S40 Suspension
Reply #101 -
10/06/20 at 13:23:30
The spec for the fork oil is a 75mm air gap. This is measured with the spring out and the fork collapsed/compressed and measured from the top of the tube to the oil. This is an excessive amount of oil. Suzuki chose this air gap in an attempt to help with the fork dive, but in reality all it does is hydrolock the fork earlier in the fork stroke, making for a harsh ride.
I suggest using an air gap of 100-120mm for a fork that is properly sprung. When using a compression valve emulator the air gap can be as large as 140-150mm.
Start with an air gap of 120mm. You can always add oil if you feel that the forks are compressing too fast. Each 8.55ml (0.289oz) of oil added or removed equates to a 10mm change in oil height.
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A life-time student of motorcycling.
LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS
My LS650=>
http://suzukisavage.com/yabb2.2/Attachments/Left.JPG
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