Quick double check on rear damping - Suzuki GSXS1000 Forum
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post #1 of 11 Old 08-11-2016, 08:02 PM Thread Starter
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Quick double check on rear damping

Just picked my bike up on Tue (a Blue F), and it feels quite a bit overdamped; pretty harsh ride. My into post includes a pic(https://www.gsxs1000.org/forum/177818-post15.html)

I made some adjustments to the front that I have to ride a bit more to confirm, but on the rear, I only get 1-1/2 total turns on the damping adjustment. Is that correct?

Thanks in advance.

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post #2 of 11 Old 08-12-2016, 03:01 PM
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Hello Sinbad, my recollection is that the rear rebound damping adjuster is from 0 to 2 full turns, per the owner's manual. And I think that the factory setting is one turn out (counterclockwise) from full rebound damping. I have the same bike as you and at 160 pounds with gear, I found it harsh too at first. But after having set the rear shock at minimum preload and the rebound at 3/4 turn out, I found it better but still a little harsh over jittery pavement. Then I fixed it by running the rear tire at about 37 to 37.5 pounds instead of the 42 psi on the sticker.

The tire pressure made a big difference for me. Maybe if I pillion a fat girl, I will have to increase tire pressure, but as it is it is perfect for me.
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post #3 of 11 Old 08-12-2016, 07:52 PM
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Originally Posted by sinbad339 View Post
Just picked my bike up on Tue (a Blue F), and it feels quite a bit overdamped; pretty harsh ride. My into post includes a pic(https://www.gsxs1000.org/forum/177818-post15.html)

I made some adjustments to the front that I have to ride a bit more to confirm, but on the rear, I only get 1-1/2 total turns on the damping adjustment. Is that correct?

Thanks in advance.
How much do you weigh? Likely the rear is actually underdamped (too jittery and tries to throw you off of the seat). The average setting on this forum seems to be 3/4 turn counterclockwise from full damping. I personally use 1/2 turn because I'm very light (140 lbs).
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post #4 of 11 Old 08-12-2016, 08:38 PM Thread Starter
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Thanks for the replies guys. Stil not sure, but it sounds like the 1-1/2 turns of damping range may be OK.

I weigh 175# without gear. I left the rear just as it was; preload at 3 and damping 1 turn out from full stiff.

I changed the front as follows:
preload was 2-1/2 lines is 4 lines
rebound damping was 8 out is 10 out
compression was 8 out is 14 out

I've only got a short ride on these settings, but it is muh improved. It is certainly a lot less "sharp: on bums, and doesnt seen to wallow or bounce. It tracks fine through sweepers I can really lean into at about 60 mph.

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post #5 of 11 Old 08-12-2016, 09:32 PM
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Originally Posted by sinbad339 View Post
Thanks for the replies guys. Stil not sure, but it sounds like the 1-1/2 turns of damping range may be OK.

I weigh 175# without gear. I left the rear just as it was; preload at 3 and damping 1 turn out from full stiff.

I changed the front as follows:
preload was 2-1/2 lines is 4 lines
rebound damping was 8 out is 10 out
compression was 8 out is 14 out

I've only got a short ride on these settings, but it is muh improved. It is certainly a lot less "sharp: on bums, and doesnt seen to wallow or bounce. It tracks fine through sweepers I can really lean into at about 60 mph.
At 175 pounds I would say your rear preload at 3 is perfect. And the damping should feel right somewhere between 1 turn from full and 3/4 turn from full. I would adjust it 1/8 at a time from 1 turn all the way to 1/2 turn and see what feels best (leaving all other adjustments constant).

Also, TBH, I have not tested how far my adjustment can go. I only went to full damping and turned back from there.
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post #6 of 11 Old 08-13-2016, 09:29 AM
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I'm 155lbs and has my rear preload at 2, damping is at 3/4. What is your preload? I believe running rear tire with less than 42psi will help but it's heavy to move them around. How 1/2 damping feel for you?
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At 175 pounds I would say your rear preload at 3 is perfect. And the damping should feel right somewhere between 1 turn from full and 3/4 turn from full. I would adjust it 1/8 at a time from 1 turn all the way to 1/2 turn and see what feels best (leaving all other adjustments constant).

Also, TBH, I have not tested how far my adjustment can go. I only went to full damping and turned back from there.
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post #7 of 11 Old 08-13-2016, 12:31 PM
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I'm 155lbs and has my rear preload at 2, damping is at 3/4. What is your preload? I believe running rear tire with less than 42psi will help but it's heavy to move them around. How 1/2 damping feel for you?
My preload is at 1. Rear tire pressure at 38 psi cold. Damping at 1/2 from full. I'm very happy with the rear in that configuration.
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post #8 of 11 Old 08-14-2016, 03:11 PM
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Originally Posted by JeffroGymnast View Post
My preload is at 1. Rear tire pressure at 38 psi cold. Damping at 1/2 from full. I'm very happy with the rear in that configuration.
Glad you have found a setting that suits you !

With your bike being so new the suspension settings are going to change as the forks and shock bed in.Keep an eye on the tyres as they will give you a good indication as to what is happening with the rebound.

In my own experience there was too much rebound damping so out it came one and one half turns.

Too much rebound damping and the tyre will create a ridge on the leading edge(LIKE MINE)
Not enough rebound damping and the tyre will create a ridge on the trailing edge.
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post #9 of 11 Old 08-15-2016, 01:38 PM
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Originally Posted by supermoto AL View Post
Glad you have found a setting that suits you !

With your bike being so new the suspension settings are going to change as the forks and shock bed in.Keep an eye on the tyres as they will give you a good indication as to what is happening with the rebound.

In my own experience there was too much rebound damping so out it came one and one half turns.

Too much rebound damping and the tyre will create a ridge on the leading edge(LIKE MINE)
Not enough rebound damping and the tyre will create a ridge on the trailing edge.
Very interesting. Thanks for the info. Any idea how many miles it takes to get the suspension broken in?
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post #10 of 11 Old 08-15-2016, 04:53 PM
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Jeffro i made a mistake in the quote,i meant to quote sinbad who had just picked up his bike.

I never get too hung up about setting my suspension until the first service is out the way(600 miles)I find a base setting that is acceptable(mine wasn't) and like the engine give it time to bed in,then fine tune it as the speed increases and more load is put on the suspension.

I bet You change the oil in the engine all the time but how many times do you change the oil in the forks,i bet never.

Forks are like the engine they require frequent oil changes to get the best out of them.

The engine oil at the first service is full of alloy and steel swarf your forks are exactly the same.

If you can afford it or do the job yourself an oil change in the forks will pay dividends to the way the forks react.

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