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Im wondering how much sag this bike should have? Without me on it my bike sags .75in with me on it 1.5in. I am 165lbs and have it on setting 3. Should I bump it up another setting?
 

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Suspension set up is a little more complex, but 30mm or just over an inch is about right with pre load so you probably have it spot on.
 

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How do you get that **** wrench in there? i cant seem to wiggle enough space to adjust it... any ideas?
 

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How do you get that **** wrench in there? i cant seem to wiggle enough space to adjust it... any ideas?
its pretty crazy but yes it says in the manual to remove the chain guard to adjust it, you can also remove the tiny rear hugger as well
 

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It's all one piece.
ah ha!
thanks for that, sorry im still waiting very patiently for my ninja 300 to show up, ordered a few weeks before xmas and still waiting.... *sigh* so i can only work of the manual
 

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I recommend dropping the shock right out to adjust it. It takes about 5 minutes and then you are able to slip it in a vise and work unobstructed.
 

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Okay, I'm confused...

So, if the roads in my area are beat up, and I also ride on the freeway quite a bit, should I bump up to a higher setting? I thought "softer" was better, but according to this, the harder setting is for bad roads and highway speeds.

The suspension feels pretty stiff to me as it is, like the smallest bump will lift me off the seat, but I never adjusted it because I thought the "hard" setting would make it worse/more stiff.

-THE DON
 

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Don, only you can decide how you like the preload set. There are ideal sag numbers you can shoot for but bike set up is rider determined. Some of the fastest riders in the World use wacky settings on their bikes. You can't adjust the compression or rebound damping on this bike stock, and that would yield much better results if done right than the 5 step preload adjuster so try it on each setting and pick the one you like best.
 

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The harder setting is not set for ride comfort, it is to keep the tyre in contact with the road! Its for bumpy roads not rough sections! You need to slow down for those!
 

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http://www.ntnoa.org/suspension_preload.htm

quoted from that page,

"It’s important to understand what you’re doing while cranking down on that adjuster. Increasing preload does not result in a stiffer spring. It only changes the amount of load it takes to begin to compress the spring. Spring stiffness is determined by the manufacturing process, and is usually expressed in lbs/in or kg/cm. As an example, a 100-lb/in. spring preloaded 2 inches will not compress further with any weight less than 200 pounds, but will compress 1 inch per 100 pounds above that. Normally, stock springs should work well enough unless you are very light or very heavy, or if you carry gear or ride two-up. If you find that you are near the limits of your preload adjustments to achieve proper static sag, you may need to consider changing your springs. Also, if your static sag is correct but free sag is less than recommended (5-10mm) or if the suspension is topping out, a heavier spring rate is indicated. Conversely, a lighter rated spring may be in order if free sag is more than desired."

So, essentialy, you are setting ride height for the weight load. Add a passenger, increase preload. Lighter rider, decrease but only if the spring rate is correct in the first place. :cool:
 

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Higher ride height! More weight transferred on to forks!= Firmer spring to weight ratio!(marginal) firmer shock!= Less spring rebound! Who are these ntnoa mob any way? Never heard of them!
 

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Something important to remember is balance.

Suspension front & rear should be "Balanced"

It does not help & will usually be counter productive to stiffen up your rear if you are not able to do the same for your front

I agree with what is written in this attached review
Around town, the plusher fork is much appreciated, but the stock
rear shock feels too firm and underdamped. However, we found that
reducing rear preload to its lowest setting had a surprisingly positive
effect; adding stability and increasing rider confidence in highspeed
curves. It just reaffirms that balanced suspension always
performs better than unbalanced, regardless of whether or not the
spring or damping rates are spot-on for one’s riding style
http://www.mcnews.com/mcn/model_eval/2012DecNinja300.pdf
 
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