setting up for bumpy roads

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steve59
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setting up for bumpy roads

Post by steve59 » Tue Jun 14, 2016 2:24 am

I weigh 170-180 geared up so I left springs alone and was happy til last saturday when I hit some twisties that had my sdr feel like bouncing on a pogo stick, I did the roads on my touring rig that has ESS and thought the roads were smooth so I would like some suggestions where to start hi speed compression or rebound? the difference was severe and confusing at the same time the difference between the two bikes The KTM was literally unrideable and I know that aint right, being beat down by a k1600 gtl really? I want to tweak what I have first so telling me which settings to start with will be much appreciated.
Enjoy

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Re: setting up for bumpy roads

Post by mrossk » Tue Jun 14, 2016 4:04 am

Have you checked the sag? Have you adjusted the compression and rebound to the recommended settings? Don't trust that the dealer has got it set up correctly. It's important to start from a decent baseline

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Re: setting up for bumpy roads

Post by Aldo » Tue Jun 14, 2016 10:22 pm

I've got much the same problem, I've adjusted the settings to sport but ain't been able to get out to see if it's made any difference.
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wsmc99
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Re: setting up for bumpy roads

Post by wsmc99 » Wed Jun 15, 2016 2:00 am

These bikes are soft on rebound so I would set the front to 5 or 6 clicks out and the rear out about the same to settle it down.
get your sag right for sure as well.

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Re: setting up for bumpy roads

Post by 1290 » Fri Jun 17, 2016 5:39 am

Check your sag, with normal bikes with linkages you usually run around 30-35mm for fast road use with the PDS system you run around 40-45mm. Look in you manual it states 45mm for rider sag. As stated the rebound is soft so if you playing with sag you will need to increase or decrease rebound to suit spring tension changes. Make sure you dont run to much rebound and the rear starts packing down.

steve59
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Re: setting up for bumpy roads

Post by steve59 » Sat Jun 18, 2016 4:03 pm

rats, I was with ya'll up to sag. I might have 1 local shop I can trust to do it, My local guru starts sippin' the suds so early these days I can't really trust him anymore.
Enjoy

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Re: setting up for bumpy roads

Post by Hitman » Wed Sep 21, 2016 12:20 pm

At 110kg plus rear bag and tank bag. - 140 kg for touring - the dealer has set the suspension for load using factory component settings - no issue travelling the twisty and sometime bumpy roads of the awesome Apple Isle - Tasmania Aust.
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Re: setting up for bumpy roads

Post by 1290 » Wed Sep 21, 2016 7:28 pm

The rear spring is way to soft for those types of loads.

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Gimlet
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Re: setting up for bumpy roads

Post by Gimlet » Thu Sep 22, 2016 1:34 pm

These are my setting for a 13.5 stone rider after a pro set-up:

Front Suspension [std. wp]:

ADJUSTMNT:
Preload .............................N/A
High Speed Compression..........N/A
Low Speed Compression..........Range: 25 clicks.........................Setting: (13) 15
Rebound............................Range: 25 clicks.........................Setting: (13) 8



Rear suspension: [std. wp 170 spring]

ADJUSTMENT:
Preload.............................Range: Spring F/L 185mm..............Setting: Installed (180mm) 177mm
High Speed Compression.........Range: 2.5 full turns.....................Setting: 1.5 turns
Low Speed Compression..........Range: 30 clicks..........................Setting: (13) 18
Rebound............................Range: 24 clicks..........................Setting: (13) 12



SAG (mm)
FRONT:..............................Static: 27..................................Rider: (23) 42
REAR:...............................Static: 16..................................Rider: (51) 42


NOTES:
All the numbers in brackets are the factory settings before the bike was worked on.
All numbers in red are are the finished settings after the set-up was completed.

The settings above were arrived at when the bike was on the original Dunlop tyres. When I changed to Metzeler M7RRs the suspension felt a little softer. I rang the guy who did the set-up for his advice and he said the new Metzelers may have a softer carcase but more likely they are grippier and they are activating the suspension faster which makes it feel softer. Don't alter the preload he said, but add one click of both compression and rebound damping at each end. Did that and it was perfectly taut again.

Notice the rear sag. The bike had a rear bias - the rear was riding lower than the front and the front end was under-loaded making it feel vague. The rear was raised to leave it a mm higher than the front and transfer more weight onto the front wheel. That mm made all the difference in the world.
Last edited by Gimlet on Fri Sep 23, 2016 5:11 pm, edited 1 time in total.

mjsracing
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Re: setting up for bumpy roads

Post by mjsracing » Fri Sep 23, 2016 3:54 pm

Gimlet wrote:These are my setting for a 13.5 stone rider after a pro set-up:


REAR:...............................Static: 42..................................Rider: (51) 42
Thanks for the detailed post.
To save someone else some time, 13.5 stone is 189 lbs

Is the rear static sag correct? It's the same as the rider sag you posted.


Thanks!

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Gimlet
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Re: setting up for bumpy roads

Post by Gimlet » Fri Sep 23, 2016 5:14 pm

Well spotted. Typo error. Corrected now.

steve59
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Re: setting up for bumpy roads

Post by steve59 » Fri Sep 30, 2016 11:36 pm

great info
Enjoy

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setting up for bumpy roads

Post by Plake » Sat Oct 22, 2016 7:15 pm

Getting mine set up properly next week too, I'm 11 stone 9. Will be looking for a fast road riding set up and will post up values.

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