Rear Shock Preload Adjustment - Page 2 - Honda CBR500R Forum : CB500F and CB500X Forums
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post #11 of 89 (permalink) Old 06-27-2013, 08:08 AM
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Your suspension does not become stiffer by increasing the preload (it is still the same spring) , but you decrease the negative suspension travel.

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post #12 of 89 (permalink) Old 06-27-2013, 08:18 AM
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by meaning stiff, i was talking about my tooth hitting each other more on bumps.
it is much more planted lets say then.
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post #13 of 89 (permalink) Old 06-27-2013, 08:26 AM Thread Starter
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I cranked mine up quite a bit. Feels a lot better.
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post #14 of 89 (permalink) Old 07-16-2013, 10:53 PM
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I had a quick go of adjusting mine one morning (I'm going to crank it to 9 - I'm a big bloke) and I couldn't seem to get purchase on it. Are you guys adjusting it whilst on a rear stand, or just on the kick stand?
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post #15 of 89 (permalink) Old 07-17-2013, 12:18 AM
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Excuse my ignorance, I havent had adjustable preload shocks before. What difference will I feel by turning up or down a few notches?
By softening the preload will I feel less of the teeth nashing Sydney road bumps and the rear feel a bit more forgiving?
Turning up - feel more of the bumps but the rear feel more planted?
What the g.o for a preload noob?
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post #16 of 89 (permalink) Old 08-16-2013, 02:02 PM
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I just looked at the spanner on hondapartshouse.com. They are charging $16.65 for shipping which is more then the spanner and handle price. I found the same items at partzilla.com with only $6.95 shipping. Does anyone have experience with this them? Does anyone know of another place that has even cheaper shipping?
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post #17 of 89 (permalink) Old 08-16-2013, 03:55 PM
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Ohlins Shock Spanner Wrench : Amazon.com : Automotive Ohlins Shock Spanner Wrench : Amazon.com : Automotive

The standard position is 3
To make it softer, turn towards the right
To make it harder, turn towards the left

It is really really stubborn! So use some muscle!
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post #18 of 89 (permalink) Old 08-17-2013, 09:25 PM
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Quote:
Originally Posted by Gezwindespoed View Post
Your suspension does not become stiffer by increasing the preload (it is still the same spring) , but you decrease the negative suspension travel.
That's right, you're adjusting the suspension to be more in the middle of its travel range where it is more effective. When you sit on the bike your weight compresses the srping. By adding or removing preload you can then get this "sag" correct. Correct sag is 30-35mm from topped out to when you sit on it.

It will "feel" stiffer as you will either have less "ballooning" (not enough pre load) or less stiff with less harsh bouncing (too much pre load), when corrected.

See the threads where BPR and I describe this is great detail.

Unless you are pretty heavy, messing around with the rear is pointless compared to the front shocks. Many people jack the rear up too much and unbalance the bike because of the soft fronts. Even then, the fronts will need new springs and spacers because of your weight compressing the front springs waaaaayy too much.

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Last edited by CBR_Dave; 08-17-2013 at 09:28 PM.
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post #19 of 89 (permalink) Old 08-18-2013, 12:56 PM
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Quote:
Originally Posted by loserlazer View Post
i have the special spanner in my stock tool set and also you need the extension part of otherwise cannot turn the shock, it is very strong.
I changed mine to setting 5 and it is perfect now. still comfy but stiffer.
I couldn't change mine with the tool, so I got the dealer to adjust it when it went in for a service.

Mine's on 8 'cos I'm big boned.
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1982 VF750S (passed forward)
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post #20 of 89 (permalink) Old 10-10-2013, 02:42 PM
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Digging up an old thread here since Drift Monkey called me fat...

Is each rear shock on the 500R setup the same from the factory? In full gear I'm 245 lbs, so is my rear shock setup the same as a 150 lb rider's is? And just how much difference will those fork preload adjusters make on the front?

The suspension is one of the things I hate about this bike. The rear sags like a dead rock and the fork dips like a seesaw while braking. If I can fix those two things I may just like it again.
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