Rear Shock Spring Upgrade - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 79 Old 03-08-2013, 09:59 PM Thread Starter
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Rear Shock Spring Upgrade

I own a 2009 DL650. I also am the owner of a fat butt that is too heavy for said DL650. However, I don't have the mucho dinero required to equip my bike with an upgrade shock - so I chose to go the route of a new spring.

I doubt this thread will be all that helpful to anyone thinking about upgrading to a heavier spring on their stock shock, but I figured I would share some of the pics I took while I worked on my bike - just in case anyone was curious about the procedure.





It was WAY too cold to ride last weekend, so after ordering a new spring from Race Tech, and a couple new dog bones, I went ahead and pulled the shock.


After pulling the shock, I used a soldering iron to heat up the set screw, and it came right off - no problem at all. Sorry, didn't get any pics.

After doing some head-scratching , I figured out how to get the old spring off without going to the trouble of making a jig for my floor jack. I used my wood-working pipe clamps. Easy Peasy



This pic isn't very good, but if you look closely, you can see the retaining ring. Note: it isn't necessary to compress the spring as far as you see in this pic. You just need to clear the retaining ring - then you pry it off with a screwdriver - and then release the clamps.


The parts turned out to be easy to clean up after the spring was off.



Later in the week, the new dog-bones came in the mail and I partially installed them. I couldn't bolt on the bottoms until the shock was installed first.


Also, for what it's worth, in order to get the shock off the bike I took a number of other parts off - for easier access ...



... so I could get to this area (where the shock's top bolt was)



Well, Santa in the brown uniform delivered my new spring yesterday






...along with the needed bushings


I was kinda surprised that NO directions were included, but after futzing around with the parts for a few seconds, it was clear that there was only one way for all of the pieces to fit together.


New compared to old




I stacked it all together and into the pipe clamps.




Then compressed the spring enough to re-install the retaining clip. The spring was noticeably stiffer then the old one - just by the feel of the clamp screws.



Then I re-set the set screw




The rest is pretty much common sense; I slipped the shock back in place, re-installed the pre-load adjuster,



applied thread-lock,



checked the manual for the settings,



and torqued everything back together



The finished assembly



I was pleased the lean wasn't too severe, and that the center stand still lifted the rear tire off the ground.




Hope this helps any potential / future spring-swappers. While I am no expert, I will be happy to answer any questions that I can.
richlandrick and JorgeLuis like this.

Last edited by guitarhack; 03-08-2013 at 10:33 PM.
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post #2 of 79 Old 03-08-2013, 10:15 PM
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Nice report and photos. What length dogbones did you use, that is, were you raising or lowering?

Nice workshop too.

2019 Eastern V-Strom Rally (website) - May 16 - 19, 2019
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post #3 of 79 Old 03-08-2013, 10:26 PM Thread Starter
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Originally Posted by Stalky Tracker View Post
Nice report and photos. What length dogbones did you use, that is, were you raising or lowering?

Nice workshop too.
I used shorter dog-bones - for a 5/8 inch lift. Kinda wish I went with the 1 inch lift. ...was afraid if I went too high the rear tire wouldn't lift off the ground with the center stand. I am guessing the 1 inch would have been OK. BTW,I have a "Murph's Kit" center stand - if that factors into the equation. I'm not sure if the geometry is the same with all brands.

EDIT:
After having a chance to ride the bike, I am glad I didn't go any higher than the 5/6 inch lift. I am 6'2", with a 32 inch inseam. I hadn't realized that the bike would ride so much higher because of the stiffer spring - in conjunction with the new dog bones. Any higher and I would be tap-dancing at red lights.

Last edited by guitarhack; 03-11-2013 at 11:09 PM.
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post #4 of 79 Old 03-08-2013, 10:32 PM
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well done

good report - and thanks
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post #5 of 79 Old 03-08-2013, 10:34 PM
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Nicely done Guitarhack. Very informative.
Thanks for sharing.

2006 Suzuki DL650
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post #6 of 79 Old 03-08-2013, 10:50 PM
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Rear Shock Spring Upgrade

Very interesting! Did you have to remove any of the pannier racks to get the rear trims off?


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post #7 of 79 Old 03-08-2013, 10:55 PM Thread Starter
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Very interesting! Did you have to remove any of the pannier racks to get the rear trims off?


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Yep. Had to partially remove the rt rack (and the rear rack) to get the rt panel off



Last edited by guitarhack; 03-08-2013 at 10:59 PM.
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post #8 of 79 Old 03-09-2013, 10:48 AM
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Thanks, this is helpfull! Will be installing a Hyperpro rear spring on my K6 Wee in the next few weeks, before this year's season kicks off... Along with heated grips and a centre stand. Crossing my fingers that all goes smoothly :beatnik:
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post #9 of 79 Old 03-09-2013, 11:36 AM
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Nice install. Question though...dose the stock shock have sufficient compression and rebound damping for this stronger spring?

Jim in Cbus

Jim in Cbus

Current ride:
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Gone rides: DL1000A; DL650A; F800ST; R1100RT;
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post #10 of 79 Old 03-09-2013, 02:49 PM Thread Starter
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Nice install. Question though...dose the stock shock have sufficient compression and rebound damping for this stronger spring?

Jim in Cbus
I will be the first to admit that I am not, by any stretch of the imagination, an expert, but to answer your question: yes, damping is just fine. I know conventional wisdom says that damping should be inadequate after installing a much heavier spring, but in all candor, I haven't quite got my head wrapped around that concept.
  • It seems to me that a heavier spring would require less compression damping - as the spring would be more effective in counteracting in inward compression.
  • I can sort of grasp the concept of rebound damping being further taxed by the heavier spring, but wouldn't that force be counter-acted by my greater mass?

Anyway, to further answer your question: I found the rebound to be a little harsh this morning - but after stopping and adjusting it by a 1/4 turn, the post-bump kick went away. Only when I got home and messed with the adjuster further did I notice that the screw was turned almost as far as it would go in the counter-clockwise direction. I must have screwed around with it during the spring swap and forgot to adjust it back where it needed to be ...no wonder the rebound started out a little harsh.

Last edited by guitarhack; 03-09-2013 at 03:04 PM.
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