Suspension Help - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
Suspension and Tire Tech For all discussions related to your suspension and tire set-ups.

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post #1 of 15 Old 07-15-2017, 01:02 AM Thread Starter
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Suspension Help

I rebuilt my K7 a few years ago and the F/R shocks were resprung for my weight at the time 220lbs (no gear). I have since discovered the Keto diet and have dropped +30lbs since Christmas and still falling. My target weight is 170-175lbs (currently at 188lbs). So with all that weight gone the bike doesn't handle well at all (handled great when I was heavier) and is over sprung for my weight. I really don't want to tear into it to replace the front springs and rear shock again nor do I want to get fat again so what can I do? I thought about adding some weight to the bike to make up the weight I lost but thought I'd ask if anyone has had to do that or has any other experience or advice to give. Is there an easy way to add weight to the bike? Where should I set preload?

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Current: 2014 V-Strom DL650 ABS Red
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Past: Suzuki: DL650AK7, GS400; Honda: CB125, Express 49cc
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post #2 of 15 Old 07-15-2017, 09:40 AM
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The fork springs are easy to replace. The rear may be able to be adjusted a bit with preload?
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post #3 of 15 Old 07-15-2017, 11:58 AM Thread Starter
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Originally Posted by notacop View Post
The fork springs are easy to replace. The rear may be able to be adjusted a bit with preload?
I might be selling it next Spring (gonna get my red one!) so I was hoping to avoid the changing out the front springs and sell it as is. Its fine for anyone near 200lbs or higher. I was hoping that adding weight might get me through the current riding season okay. It is really getting uncomfortable (if not unsafe) to ride as it stiffly skitters over bumps. The other day I even got a slight steering wobble when I hit a bump at an odd angle. I don't know if that is related but it never did that before. I am going to back off the F/R preload and see if that helps as I haven't really messed with that since I refurbed the bike.

Pink Floyd: And did you exchange a walk-on part in the war for a lead role in a cage?
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Current: 2014 V-Strom DL650 ABS Red
Next Up: ?
Past: Suzuki: DL650AK7, GS400; Honda: CB125, Express 49cc

Last edited by dmfdmf; 07-15-2017 at 12:01 PM.
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post #4 of 15 Old 07-15-2017, 12:34 PM
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you lost the weight, so you got new clothes?
why not do the same for your bike?

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post #5 of 15 Old 07-15-2017, 12:38 PM Thread Starter
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Originally Posted by DaMonk45 View Post
you lost the weight, so you got new clothes?
why not do the same for your bike?
Good idea. That's why I am planning on selling it next Spring and get me a red one!
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Pink Floyd: And did you exchange a walk-on part in the war for a lead role in a cage?
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Current: 2014 V-Strom DL650 ABS Red
Next Up: ?
Past: Suzuki: DL650AK7, GS400; Honda: CB125, Express 49cc
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post #6 of 15 Old 07-15-2017, 06:18 PM
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Oh, congrats on the weight loss. Dr says I should become lees of me but I lack the stick put to it-ness!
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post #7 of 15 Old 07-15-2017, 06:32 PM
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Isn't the front and rear preload adjustable?

2014 650 Strom
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post #8 of 15 Old 07-15-2017, 11:40 PM Thread Starter
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Originally Posted by Highwayman2016 View Post
Isn't the front and rear preload adjustable?
The preload has no effect on the spring rate which is my problem, the springs are far too stiff for my new weight. As I understand it, and I am no suspension expert, the preload adjusts the sag, i.e. where the bike rides with the weight of the rider on board within the range of suspension movement. The preload allows you to adjust the sag if you add extra weight such as camping gear or a pillion, etc. to keep the suspension from bottoming out on bumps. Hopefully someone else can chime in and give a better explanation because I don't understand suspensions and they are complex. I already backed off the rear preload and will probably do the front soon but I don't know if that will have much of an impact. Today I went for a ride and it handled much better with a full tank of gas but got noticeably worse after my 90 mile ride as the tank was emptied.

Pink Floyd: And did you exchange a walk-on part in the war for a lead role in a cage?
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Current: 2014 V-Strom DL650 ABS Red
Next Up: ?
Past: Suzuki: DL650AK7, GS400; Honda: CB125, Express 49cc
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post #9 of 15 Old 07-16-2017, 12:10 AM
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Quote:
Originally Posted by Highwayman2016 View Post
Isn't the front and rear preload adjustable?
The preload just moves the position of the spring mounts up or down to get the bike in about the center of its suspension travel, as said, to minimize the chance of topping out or bottoming out. Even with dmf's back out all the way he may top out those springs.

I don't know what you can do except change springs. It's easy if you change one front at a time.
--take the weight off the front
--back the preload off all the way
--loosen the top triple tree clamp on one side
--remove the plug in the top of the fork tube
--remove the spacer
--fish out the spring
--insert the new spring and put everything back as it was originally.
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post #10 of 15 Old 07-16-2017, 01:42 PM
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30-40 lbs really isn't enough difference to cause you do change spring rates. It's only 5% of the total bike/rider weight. Bike should still feel fine unless it was borderline too stiff before.
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