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Discussion Starter #1
For the racing types on here.

I am trying out a 190/55 on my 08 with stock suspension for the track.

It is about 2.5mm taller than my 180/55. To keep everything else the same do I just remove the shim at the top of the shock?

TIA
 

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I would leave the spacer on the rear and raise the front 2.5mm.
 

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Discussion Starter #5 (Edited)
I bought it pretty stock. Currently I have 7-8mm from the top of triple clamp to the top of the fork cap. I'm just thinking about balance. I think I may be able to handle alittle more weight on the front wheel either through the front or adding ride height to the rear (which I understand the tire might do for me). Just looking at things to work on next time out.

As for bringing the front up 2.5mm is that to maintain ground clearance when leaned over on the larger tire? I do find already that I often hit the toe slider on some corners despite moving the foot rearward onto the peg. Obviously that is not my aim.

I would prefer not to scrape them and just be faster :) BUT that is a work in progress.

I understand a few aspects of suspension setup, but not as sure about ride height and front to rear balance from a track riding POV.

Any learned advice would be appreciated.
 

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If you have stock, unmodified forks... the tops of the caps should be flush with the triple clamp. Im not talking about the preload caps but the part it screws into.
If you search the suspension thread there are actual #s, in mm, to start with for a baseline.

Anyone Ive seen with fork legs up above the triples has usually crashed because they over loaded the front.

If you are over 160lbs you're going to need to up the spring rate some.
 

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Discussion Starter #7 (Edited)
Thanks mate. I have now found some threads on it. I'm about 152lbs. I thought I read on here that was the bikes before the 08 as the 08 ended up with a longer spring?

Edit: Racetek has me on the right front spring for my weight but too soft with the stock spring on the rear.
 

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Discussion Starter #8
If you have stock, unmodified forks... the tops of the caps should be flush with the triple clamp. Im not talking about the preload caps but the part it screws into.
If you search the suspension thread there are actual #s, in mm, to start with for a baseline.

Anyone Ive seen with fork legs up above the triples has usually crashed because they over loaded the front.

If you are over 160lbs you're going to need to up the spring rate some.
On second thoughts, you seem incorrect. All the threads I have read indicate I should have 10mm showing on my 08 R6.

Phrozen's suggestion seems to be a good one to I'm guessing maintain ride height and balance front to rear.
 

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On second thoughts, you seem incorrect. All the threads I have read indicate I should have 10mm showing on my 08 R6.

Phrozen's suggestion seems to be a good one to I'm guessing maintain ride height and balance front to rear.

Yes go ahead and believe them. The forks should be flush... if you have 10mm above the triple you will undoubtedly crash in a short time...guaranteed. Unless Phrozens real name is Mike Fitzgerald...

Again reread my post and then reference the #s posted in the suspension thread. You seem to think that balance is a thing and you are wrong. Its real simple with a tape measure to know if you have the correct amount of ride height or not.

I have also posted the dimensions of a stock unmodified fork leg from an 07, 08 and one with a 25 & 30mm cartridge kit installed. The modified ones were dramtically longer hence why you put the forks down through the triples to raise the ride height in the front.
 

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Discussion Starter #10
Hey mate. You read alittle tense about the discussion. I don't mean to offend you. I just cannot find what you are talking about. Feel free to show me. I'm open to learning about it, hence why I asked.

I have been on this bike for a bout 10 track days separated by a long rebuild resulting from being crashed into. No handling related crashes yet, but I'm only running in the fast group locally which is still below the racer group. I suspect the problems you may be alluding to will not present themselves to me until I can actually load the suspension more. I would like to understand why I make changes and do intend to get more professional guidance moving forward when I have the time as suspension guidance is not at our local track I need to go further afield.
 

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So I took that whole suspension setup guide to heart and tried to set the sag on my bike. It didn't work out....

I now have Öhlins 30mm carts and a TTX rear shock and I'm running 42mm front & 28mm rear sag and it rides like a dream.

I just wish I had tried setting the sag of the oem stuff like I did my Öhlins... ??*♂

I always thought it was supposed to be the same sag front and back, I was wrong....
 

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Discussion Starter #15
https://www.r6-forum.com/forums/56-suspension-settings/6983-recomended-settings-r6-15.html#post4868610

That should get you in the ball park for baseline settings. Then adjust from there.
Well I adjusted the trail. I ended up with about 523mm. It was a big adjustment for me. The bike felt like it was steering like a boat for the first two sessions until I got used to it. Running 30mm F & R Rider Sag. Stock suspension. With the adjustments I needed to take out some low speed compression on the front and a click softer on the rear rebound on my home track. It is quite bumpy and tight (2.2km).

Once adjusted I felt alot more stable in the corners and had more clearance. Good feel too. First time on the 190 Dunlops and ended up running about 3 seconds a lap quicker.

I think this setup will work well on the bigger tracks like Phillip Island and Eastern Creek.
 

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Discussion Starter #16
After another day on the new fork height I feel it still understeers more than I would like. The bike is very stable, so it is just about finding that happy medium for me. I have backed off the fork height to 520mm (-3mm) for the next day to see how that goes. Preload and rebound is fine.
 

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Discussion Starter #17 (Edited)
So I got to test 520mm fork height at the track and it was pretty much perfect. I lost the steering like a boat feeling it had at 523mm, but kept the stability.

I'm pretty happy with the stock front fork performance generally, but no matter what I do the rear doesn't seem to work well.
 

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If your running 30mm front and rear, try running 20-25mm in the rear and 30mm front.
 

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Discussion Starter #19
Yeh, I'm not real keen on that idea. The sag on the rear is about right. The compliance is not. Stiffening up the rear would make the problem worse. I haven no problem with turn in or stability now so am not chasing geometry changes, just rear compliance.
 
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