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 Post subject: XB12s Suspension
PostPosted: 13 Jun 2012 22:06 
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Joined: 12 Jan 2011 19:27
Posts: 92
Current ride: XB12S
Location: North East UK
Well, I've had my XB12s lightening for a couple of years now and have been on the verge of selling it a few times. My main concern has always been the handling. It's always been unstable over bumps and ripples in the road whilst under acceleration. The suspension and tyre pressures have been set as per the manual but I've never been brave enough to stray too far from the factory recommendations.
So today I was off work and the forecast was reasonable so I had a ride up to Knockhill circuit to speak to ERS who specialise in Ducati suspension mainly to ask a couple of things about my 999s.
Whilst I was talking to Eddie at ERS he spotted the Buell and said he loved them and used to work on them. I mentioned the handling thing and he had a bounce on the bike. Too much static sag give it half a turn on the rear rebound and a touch more front compression. Drop the tyre pressures to 29 front 31 rear.
It's a different bike. Stable and sure footed I can't believe the difference he's made.

So if you are up north I can thoroughly recommend ERS 8-)


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 Post subject: Re: XB12s Suspension
PostPosted: 13 Jun 2012 22:49 
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Joined: 15 Dec 2011 16:32
Posts: 232
Current ride: xb12s lightning
Location: Nairn scotland
Hi are they at knockhill :?:


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 Post subject: Re: XB12s Suspension
PostPosted: 13 Jun 2012 22:55 
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Joined: 12 Jan 2011 19:27
Posts: 92
Current ride: XB12S
Location: North East UK
Yes, just on the left as you go in. Can't miss them.


http://www.ersracing.co.uk/


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 Post subject: Re: XB12s Suspension
PostPosted: 14 Jun 2012 00:54 
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Think Pink
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Joined: 07 Jun 2010 00:37
Posts: 3777
Current ride: Awesome Ulysses & X1
Location: balderton, newark
ojw30 wrote:
Well, I've had my XB12s lightening for a couple of years now and have been on the verge of selling it a few times. My main concern has always been the handling. It's always been unstable over bumps and ripples in the road whilst under acceleration. The suspension and tyre pressures have been set as per the manual but I've never been brave enough to stray too far from the factory recommendations.
So today I was off work and the forecast was reasonable so I had a ride up to Knockhill circuit to speak to ERS who specialise in Ducati suspension mainly to ask a couple of things about my 999s.
Whilst I was talking to Eddie at ERS he spotted the Buell and said he loved them and used to work on them. I mentioned the handling thing and he had a bounce on the bike. Too much static sag give it half a turn on the rear rebound and a touch more front compression. Drop the tyre pressures to 29 front 31 rear.
It's a different bike. Stable and sure footed I can't believe the difference he's made.

So if you are up north I can thoroughly recommend ERS 8-)

aint run recomended tyre pressurs for 3 three years ,i run 31 /33 ,recon there might be a trade of runnig softer as well, WHEEL BEARINGS may last longer :yup: :D :D

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 Post subject: Re: XB12s Suspension
PostPosted: 19 Aug 2012 22:53 
Been having the same woes with XB12 SCG. Difference being, I've fiddled with suspension settings a lot to try to sort it and to counteract the harsh ride I was getting, but to no avail. It was tracking in even minor seams in the road and generally just giving no confidence; feeling that it would just slip from under me at every turn.

I thought tyre pressures might be the issue but with all the info recommending sticking to the manufactures setting F 34 / R 36, I only strayed by a psi or two either way, with of course no effect.

Then I got to thinking, I am light; 10 1/2 stone at most, so how is it that I am being told to use the same pressures as someone twice my weight or with two up...? Surely I thought, the tyres must be manufactured to offer the best grip, handling and feedback, with a specific amount or tyre footprint on the road, which for a lighter than average rider like me, could only be achieved by dropping pressures.

So a few days ago I took the buell by the horns (pun intended), and dropped them to F 30 / R 32, and had a similar eureka moment. I feel I am at a much better starting point to now experiment with the odd psi up and down, and after finding this thread, will try the 29/31 recommended by Eddie :worthy: first.


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 Post subject: Re: XB12s Suspension
PostPosted: 19 Aug 2012 23:11 
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Joined: 08 Apr 2011 19:13
Posts: 321
Current ride: Tl1000s
Location: worthing west sussex
I'm 10 stone wet, use the manual set up and run 34/32, 32/30 on track. Seems to work, but my r probably puts more weight over the front than your scg.
I'm in west Sussex if you fancy a trip up to brands by the way....


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 Post subject: Re: XB12s Suspension
PostPosted: 19 Aug 2012 23:18 
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Joined: 06 May 2009 17:28
Posts: 7259
Current ride: 1991 RS1200 westwind
birdy wrote:
I'm 10 stone wet, use the manual set up and run 34/32, 32/30 on track. Seems to work, but my r probably puts more weight over the front than your scg.
I'm in west Sussex if you fancy a trip up to brands by the way....

Are you saying you are running higher pressure front than rear? .............

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2001 X1 2009 1125CR 2006 Uly X3 2010 Uly a fully Maz'd S1 and a 1991 RS1200 Westwind.


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 Post subject: Re: XB12s Suspension
PostPosted: 19 Aug 2012 23:50 
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Joined: 15 Apr 2009 17:25
Posts: 11772
Location: Oswestry
kevmean wrote:
birdy wrote:
I'm 10 stone wet, use the manual set up and run 34/32, 32/30 on track. Seems to work, but my r probably puts more weight over the front than your scg.
I'm in west Sussex if you fancy a trip up to brands by the way....

Are you saying you are running higher pressure front than rear? .............


It's getting more common these days. Some brands like the new Dunlops let you run very low pressures on the rear, but the front is often higher. Only usually seen on the track though.

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 Post subject: Re: XB12s Suspension
PostPosted: 20 Aug 2012 08:57 
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Joined: 08 Apr 2011 19:13
Posts: 321
Current ride: Tl1000s
Location: worthing west sussex
No, I was putting the rear tyre pressure first....


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 Post subject: Re: XB12s Suspension
PostPosted: 20 Aug 2012 14:04 
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Joined: 06 May 2009 17:28
Posts: 7259
Current ride: 1991 RS1200 westwind
birdy wrote:
No, I was putting the rear tyre pressure first....

:yup:

_________________
2001 X1 2009 1125CR 2006 Uly X3 2010 Uly a fully Maz'd S1 and a 1991 RS1200 Westwind.


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