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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through September 14, 2010 » Suspension set up help « Previous Next »

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Petethekiller
Posted on Tuesday, September 07, 2010 - 06:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

After riding my CR with the factory suspension settings for about 3000 miles I decided to set the suspension up to match my weight as per the owners manual. I realy had no major gripes before except for the excessive nose dive when on the brakes hard and the rear felt a little loose. So now that I set the bike up per the owners manual for a 210lb rider the front feels sketchy.
It wants to waddle at low speeds and during normal speed cornering I feel like it wants to plow and possibly slide form beneath me. The bars themselves want to hit the tank if I lean into a corner. I have to push them away from the corner to maintain control.

What should I be looking at?

thanks
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Velocity
Posted on Tuesday, September 07, 2010 - 08:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Do a search on the 1125R board and you can find more than enough to get you in a direction. As I have been told and found out experimenting with the setup worked, as long as you set the sag front and rear first.


Scott
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Blk09r
Posted on Tuesday, September 07, 2010 - 09:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I would start with tire pressures. I weigh about the same as you and the settings in the manual were spot on when I checked sag. 30mm front and rear. I was pretty surprised. I haven't had my R on the track yet but it's the best handling bike I have ridden.
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Xb1200rick
Posted on Tuesday, September 07, 2010 - 09:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The CR with the high bars needs less preload than the spec calls for, and more compression,and rebound dampening. Just my opinion. I am about 180 with out gear, I run 0 preload and 1/4 comp and 1/2 rebound. When I set my bike up by the book it handled just as you described , the front never felt "right" . Now I am very Happy . (get rid of the corsa's too )
Rick
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Ratbuell
Posted on Wednesday, September 08, 2010 - 12:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have to push them away from the corner to maintain control.

Um...that's called "countersteer", and it's the right way to do it. Push on the inside bar at anything above parking lot speeds. Check out one of any number of rider's handbooks / training guides, and research not only technique, but suspension theory.

Your description of how it's handling makes me think of low front tire pressure.

Read the theory section in the owners manual, immediately before the setup charts. It does a great job of explaining what adjustment has what effect on handling. And the key is this:

If you are going to make changes....

ONLY MAKE ONE CHANGE AT A TIME.

That way you know for a fact if "adjustment X" made things better or worse. If you toss a bunch of changes at it at once, you don't know if adjustment X, Y, Z, or Q made it do what you don't like. Or do like.

And for what its worth, I run my stock CR (clubmans) 1.5 weight ranges *lighter*. The recommended settings were too firm for my tastes. The manual is a STARTING POINT, not an absolute.

It will totally transform the bike when you get it "right". I promise.
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Mtch
Posted on Wednesday, September 08, 2010 - 04:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

there was a thread recently about setup. im 180 geared up, and have 0 preload on the front and 1 notch on the rear. also have the front compression to about 1/2 turn to reduce the dive under braking as i find it makes the CR a bit unstable. rebound is about 1/4 turn out each end from the manual spec.

running michelin power pures at 34/36.

here on thread but more to do with tyres, although the last post has some advice about suspension

http://www.badweatherbikers.com/buell/messages/290 431/579150.html?1278756265

and another

http://www.badweatherbikers.com/buell/messages/290431/585158.html




(Message edited by Mtch on September 08, 2010)
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Petethekiller
Posted on Wednesday, September 08, 2010 - 09:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for all of the tips...since it is gonna rain for the next 3 days I guess I can do some reading.

thanks


Pete
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