rear preload adjustments - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 22 Old 02-15-2011, 09:18 AM Thread Starter
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rear preload adjustments

I am a pretty big bloke and as such went to increase the preload on the rear shock

My understanding is that the adjustment knob should turn around two and a half to three revolutions for the full range of preload settings.

I am not sure on what mine was set at but about 6 turns later I was still able to keep adjusting (in the clockwise or increased preload direction)

Is this normal?

Can you over adjust (in general, not to suit rider preferences)

Apologies if this topic has been flogged in the past but I am new to my Strom and this forum

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post #2 of 22 Old 02-15-2011, 09:21 AM
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There are lines on the top of the shock to indicate pre-load settings... Mine is set on 4....

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post #3 of 22 Old 02-15-2011, 09:31 AM
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It's closer to 30 revolutions for the full range. I forget exactly how many. There are five height lines around the shock body at maximum extension.

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 #4 of 22 Old 02-15-2011, 09:44 AM Thread Starter
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thanks guys

I will recheck in the day light

good night from Perth
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post #5 of 22 Old 02-15-2011, 06:39 PM
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Keep turning and turning and turning and turning and turning while you curse the evil SOB designer who tucked the knob into an area where it's impossible to get a good grip on the knob and every tiny 1/4 turn will bruise your knuckles...

Yeah, it'll stop when you get to the end, and it takes a lot of turns. Still beats dealing with the old threaded preload collars with a hammer and punch.

You can also remove the knob (careful, there's a washer, spring and a ball that will fly out and vanish forever) and use an 8mm socket or t-handle driver.

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post #6 of 22 Old 03-05-2011, 08:10 PM
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Quote fm Greywolf:
"There are five height lines around the shock body at maximum extension."

My Wee rear shock body shows 2 lines, with approx 1/16" above & below each line. I think this equates to a setting of #3.

Question: When turning this rear "loading" adjustment knob clockwise it stiffens the spring (helpful if carrying a heavy load), but does it ALSO lower the rear end of the mc? In other words, would the spring be COMPRESSED when set to a stiffer setting?

Thanks for clarification.
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post #7 of 22 Old 03-05-2011, 08:25 PM
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Watch the 3 Racetech Suspension Seminar video. They are a great overview of what the changes make YouTube - Race Tech Suspension Seminar Pt.1

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post #8 of 22 Old 03-05-2011, 09:00 PM
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Quote:
Originally Posted by Montana73 View Post
Quote fm Greywolf:
Question: When turning this rear "loading" adjustment knob clockwise it stiffens the spring (helpful if carrying a heavy load), but does it ALSO lower the rear end of the mc? In other words, would the spring be COMPRESSED when set to a stiffer setting?

Thanks for clarification.
Changing the preload does not stiffen the spring. The spring stiffness is inherent. Cranking the preload clockwise raises the rear and counterclockwise lowers it. It's called setting the sag for the load. See The Science and Black Magic of Suspension Setup

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 #9 of 22 Old 03-05-2011, 11:59 PM
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To simplify, the goal of setting the sag, both front with spring selection and preload spacers & setting and rear with spring selection and preload setting, is to get you, with your weight and cargo, into the middle of the suspension travel. So you have about equal chance of topping out or bottoming out if you hit big bumps--or equal chance of neither topping out or bottoming out. It does not stiffen the suspension. It is not the correct way to set the ride height.
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post #10 of 22 Old 03-06-2011, 12:12 AM
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And just to bring a bit of perspective to all this, if you weigh more than about 150 - 170 pounds, the stock spring is pretty much just useless mush. In other words, preload it all you want, but the stock spring rate is far too low for many riders. You can't adjust the stock suspension to work correctly if your personal displacement is outside this range -- you're rearranging deck chairs on the Titanic here.

If you're on the larger side, crank up the preload all the way and leave it there until you save up the pennies to send your shock to Sasquatch for a rebuild and a proper spring.

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Last edited by bwringer; 03-06-2011 at 12:21 AM.
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