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post #1 of 9 (permalink) Old 03-15-2013, 04:18 PM Thread Starter
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Sag settings

I have the bike up on stands at the moment and have taken measurements of the suspension unloaded prior to setting the sag.

What do you guys recommend setting the sag at for fast road riding only? I was thinking of setting it to 30mm

Thanks in advance
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post #2 of 9 (permalink) Old 03-15-2013, 04:22 PM
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Look here.




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post #3 of 9 (permalink) Old 03-15-2013, 04:27 PM
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38-40 Front

25mm rear, 30mm will offer a more comfortable ride, but the 25 will get you a much quicker response

Oh & you cannot take measurements on a stand. The bike must be on flat level ground with you on the bike in your natural riding position. This means you need 2 extra people to take sag measurements properly. One to hold the bike while you are sitting on it and one to take the measurements.

You will personally have to help left the bike in the air to get the front & rear wheel off the ground for the unloaded measurements. The guy that does the measuring ALWAYS does the measuring as he is the only person that can insure the points you are measuring from are constant and we are dealing in millimeters here so there is not a lot of room for error.

Last edited by LDH®; 03-15-2013 at 04:29 PM.
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post #4 of 9 (permalink) Old 03-15-2013, 04:35 PM
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And make sure you ride the bike for a bit to warm up the oil in the suspension



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post #5 of 9 (permalink) Old 03-15-2013, 04:41 PM Thread Starter
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Originally Posted by LDH® View Post
38-40 Front

25mm rear, 30mm will offer a more comfortable ride, but the 25 will get you a much quicker response

Oh & you cannot take measurements on a stand. The bike must be on flat level ground with you on the bike in your natural riding position. This means you need 2 extra people to take sag measurements properly. One to hold the bike while you are sitting on it and one to take the measurements.

You will personally have to help left the bike in the air to get the front & rear wheel off the ground for the unloaded measurements. The guy that does the measuring ALWAYS does the measuring as he is the only person that can insure the points you are measuring from are constant and we are dealing in millimeters here so there is not a lot of room for error.
The stands I am using don't use the suspension so they are sitting naturally. Ie I'm using an Abba stand and a headstock stand, and already have the unloaded settings.

Here's the bike on its stands


I should have mentioned that I have set sag before. Sorry for that.
I will set the rear to 30mm and the front to 35mm to start off with and see what it is like once warmed up.

Last edited by SP1 Jock; 03-15-2013 at 04:46 PM.
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post #6 of 9 (permalink) Old 03-15-2013, 04:43 PM Thread Starter
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Thanks MB. That was very helpful.
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post #7 of 9 (permalink) Old 03-15-2013, 04:58 PM Thread Starter
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I should have also mentioned that I have the Dan Kyle linkage to help with turn in.

Will 30mm of sag at the rear still be the case with this linkage.

Sorry to be a pest.
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post #8 of 9 (permalink) Old 03-18-2013, 01:08 PM
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I should have also mentioned that I have the Dan Kyle linkage to help with turn in.

Will 30mm of sag at the rear still be the case with this linkage.

Sorry to be a pest.
The Dan Kyle linkage is not there to help with turn-in. It is there to alter the rising rate of the rear suspension to make it more linear which translates into more traction when exiting the turns. The additional ride height the link creates is simply a by-product of its original intention.
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post #9 of 9 (permalink) Old 03-18-2013, 01:39 PM Thread Starter
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Thanks LDH

Never knew that about the link.
I tried setting the sag at the weekend, but even with the forks preload wound full in I had 42mm of sag. Looks like the previous owner had a lighter spring to go with his weight.
I'm sending the suspension to Reactive Suspension here in the Uk to have the forks serviced, new spring fitted for my weight, and fit and setup the forks with FG Guibillini cartridges that I managed to pick up as a bargain on the evil bay thanks to a member on here who pointed me in they're direction.
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