Fork spring rate on 2012 - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
DL650A - 2012-2016 DL650A 2012-2016 (L2-L6)

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post #1 of 14 Old 07-28-2012, 09:45 PM Thread Starter
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Fork spring rate on 2012

Anybody know what it is? Feels stiffer than the older version.

-Tom (DL650AL2) (KA1TOX) (E-I-E-I-O)

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post #2 of 14 Old 07-28-2012, 09:52 PM
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It does feel stiffer than the Wee which was something like a .76kg/mm average on a progressive spring. Nearly as stiff as the 0.90kg/mm Sonics on my K7.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
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post #3 of 14 Old 07-28-2012, 10:29 PM Thread Starter
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Quote:
Originally Posted by greywolf View Post
It does feel stiffer than the Wee which was something like a .76kg/mm average on a progressive spring. Nearly as stiff as the 0.90kg/mm Sonics on my K7.
Yeah, it feels about the same as .9's to me as well. Several times I've swapped through .9, .95, 1.0, and 1.1 on the '07 bike.

-Tom (DL650AL2) (KA1TOX) (E-I-E-I-O)

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post #4 of 14 Old 07-28-2012, 11:31 PM
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Is it adjustable?
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post #5 of 14 Old 07-28-2012, 11:48 PM
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Quote:
Originally Posted by Vinnie Strombolie View Post
Is it adjustable?
Preload is. Damping is not.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
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post #6 of 14 Old 07-29-2012, 11:16 AM
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If somebody sends me one I'll be glad to measure it.

Rich Desmond
'07 DL650, '01 DR-Z400S, '99 SV650 (race bike), '80 GS1000S, '85 RZ350, '08 Ducati 848
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post #7 of 14 Old 07-29-2012, 01:43 PM
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I'll have a pair to send if I ever get around to it! Bought Sonic 1.1kg/mm almost the same day I bought the bike, but I don't want to take the bike offline for maintenance during riding season.

I've been afraid to post it, but was thinking about supporting the bike, removing the fork caps, and carefully drawing the spacer and springs straight up and out while trying to allow the oil to run back down into the fork tube, then sliding the new spring in and putting it all back together.

The bike is brand new - the oil should be good and it's level is 'factory-set.' All I need to do is remove factory coils and put Sonics in. There's got to be a way to "cheat."
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post #8 of 14 Old 07-29-2012, 01:46 PM
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Maybe the volume of oil coating the old spring will be made up by the larger spring size. I would think about using heavier oil to go with the heavier springs though.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

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post #9 of 14 Old 07-29-2012, 02:16 PM Thread Starter
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Quote:
Originally Posted by phoenixsteve View Post
I'll have a pair to send if I ever get around to it! Bought Sonic 1.1kg/mm almost the same day I bought the bike, but I don't want to take the bike offline for maintenance during riding season.

I've been afraid to post it, but was thinking about supporting the bike, removing the fork caps, and carefully drawing the spacer and springs straight up and out while trying to allow the oil to run back down into the fork tube, then sliding the new spring in and putting it all back together.

The bike is brand new - the oil should be good and it's level is 'factory-set.' All I need to do is remove factory coils and put Sonics in. There's got to be a way to "cheat."
Swapping the springs out takes me about 20 minutes. You won't lose much oil if you draw them out slowly. Use a shop rag around the top of the fork tube to contain the mess.

You just need to determine spacer length to account for differences in the length of your new vs. old springs. I use a tubing cutter to cut the PVC pipe.

-Tom (DL650AL2) (KA1TOX) (E-I-E-I-O)

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post #10 of 14 Old 07-29-2012, 04:02 PM
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Quote:
Originally Posted by phoenixsteve View Post
I'll have a pair to send if I ever get around to it! Bought Sonic 1.1kg/mm almost the same day I bought the bike, but I don't want to take the bike offline for maintenance during riding season.

I've been afraid to post it, but was thinking about supporting the bike, removing the fork caps, and carefully drawing the spacer and springs straight up and out while trying to allow the oil to run back down into the fork tube, then sliding the new spring in and putting it all back together.

The bike is brand new - the oil should be good and it's level is 'factory-set.' All I need to do is remove factory coils and put Sonics in. There's got to be a way to "cheat."
Why though?? It only takes an hour or so to do it the right way. The fork oil may be newish, but it's probably not the right weight. Also, it gets dirty quickly when the bike is new, as the bushing and sliding surfaces wear into each other.

Rich Desmond
'07 DL650, '01 DR-Z400S, '99 SV650 (race bike), '80 GS1000S, '85 RZ350, '08 Ducati 848
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