How to set the "SAG" on your bike?

tiogajoe

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Can someone help me out setting the sag on my S10? I'm trying to dail in my suspension settings and would like to know how you get this measurement? I'm about 200 plus pounds with gear/helmet etc. I have my bike lowered w/ jaxson's links out back and about 13 mm up front. Thanks.
 

tiogajoe

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Thanks FlaDave. How much sag should I be shooting for on the S10. I'm a pretty average rider. Mix of street and gravel roads.
 

BaldKnob

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Joe, usually 1/3 of total wheel travel is a good place to start but what do I know. You don't want to compress more than half the travel just by sitting on it otherwise you get into stiffer valving and ride will suffer. I think finding optimal suspension settings for this bike may be tough and will probably take a professional revalve front and rear however the S10 doesn't need "optimal" anything because it isn't designed to be a race bike ridden at 9/10ths. Cush it out on the highway, tighten it up in the twisties or a load and ride on!
 

tomatocity

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Waiting for Phil to chime in. He is very good with instruction.
 

Firefight911

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I've been really wanting to chime in but I'm buried in a Homeland Security WMD/Terrorism class right now for work. I'll try this weekend in between calls after I get back to work!!


Sent from my iPhone using Tapatalk which means there are more than likely spelling errors!
 

MidlifeMotor

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This could be an interesting thread.

I convinced my department to pay for five of our motor instructors and me to attend an Advanced Riding Course, Total Control 1, and Total Control 2 training courses taught by the local MSF affiliate. Part of the TC1 course is suspension. The instructors showed me and our mechanic how to set the Sag and other suspension adjustments for me and other officers as individual riders. All I can say is "Wow" with regards to how this Concours 14 handles now that the pre-load and damping adjustments are at the right settings. It really brought to light for me how important suspension is to good riding.

However, I am very curious how one would go about adjusting the ST, how one could get a good highway ride AND a great off road ride as well. This could be a very informative thread.
 

tiogajoe

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I spoke with Rick at Cogent. He said to shoot for 2.5" of sag on both ends. I could get the front to 2.25" with the forks preloaded at 4 lines. Anything more than that and I think the front end is too soft for my likes. The rear I could only get to 3.25" of sag at 1 line from max hard. I didn't even bother going to full max as I'm sure the stock spring is too soft. To ride at full max on the rear would be riding in the stiffest part of the spring which I'm pretty sure is not the optimal set-up. I do have my bike lowered w/ a Jaxson link and I 'm sure that adds some mechcanical advantage to compressing the spring. I'm pretty much a Noob when it comes to suspension set up...I'm learning as I go and read this forum. I've never rode a bike that has been properly set up and I understand it can make a world of difference in handling and safety. My main goal in tinkering with the suspension is to just be a better/safer rider. I realy need to work on my Dirt/gravel road skills as I never rode much off road except ATV's. Probaly best to have your scoot set-up properly. BTW Rick at Cogent has been very helpful over the phone. I will go with him for any upgrades as soon as I have a good base on the stock set-up bike to give him the most information I can.
 

BaldKnob

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tiogajoe said:
The rear I could only get to 3.25" of sag at 1 line from max hard. I didn't even bother going to full max as I'm sure the stock spring is too soft.
Speaking of heavier springs... Race Tech is offering 15% off merchandise for AMA members. Giddyup!
 

Rasher

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tiogajoe said:
To ride at full max on the rear would be riding in the stiffest part of the spring which I'm pretty sure is not the optimal set-up. I do have my bike lowered w/ a Jaxson link and I 'm sure that adds some mechcanical advantage to compressing the spring.
There is no "stiffest part of the spring" as it is a linear spring, pre-loading is just that (pre-loading) and alters the point at which the spring starts to compress, however as you appear to be aware the rising rate setup does in effect change spring rate as the suspension moves through leverage.

I believe lowering actually lowers the rising rate and not increases it, either way the spring is a bit soft, I have a Wilburs which has a 150 spring (up from OE 137) and works a lot better for wo-up use with little or no ill effect solo (although also bolstered through much higher quaility damping and general build quality so overall it feels far more "plush" and better controlled in all conditions)
 
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