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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through November 26, 2010 » Does a full turn on pre-load really do that?! « Previous Next »

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Milleniumx1
Posted on Monday, November 22, 2010 - 10:55 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ahh, suspension topics ... Almost as much fun as synthetic vs regular oil! I asked a serious question a few weeks back about rear tire spin that I was experiencing on my '09R. And no, it wasn't a "my bike is so bad***" thread.

Another Buell'er said to increase my front pre-load to better plant the rear tire. I was skeptical, but tried a full turn (+) to see what happened. It actually made a big difference. Now I have a new problem - Unexpected wheelies!

Mike

(Message edited by milleniumx1 on November 22, 2010)
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Northernyankee
Posted on Monday, November 22, 2010 - 03:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

By just increasing front preload you will shift weight to the rear, which will do both things you have mentioned.

Have you properly set your sag both front and rear?
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Milleniumx1
Posted on Monday, November 22, 2010 - 03:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I never really measured sag. I set it up just like the manual specified (165 ride weight) and backed everything off a step since that seemed too stiff for me.

I understood the concept of more front pre-load shifting weight to the rear, but have been pleasantly surprised how much a tweak here and there changes the bike.

Mike
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Rt_performance
Posted on Tuesday, November 23, 2010 - 01:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

don't back off the preload back off the damping great grip smooth ride
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Dalton_gang
Posted on Tuesday, November 23, 2010 - 08:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"Now I have a new problem - Unexpected wheelies"

You just gotta love those power wheelies

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Milleniumx1
Posted on Tuesday, November 23, 2010 - 09:20 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I tinkered with it (newbie to sportbikes) the first few hundred miles, adjusting and then riding. Then one day, it just felt right ... Like I was in the bike, not just on it.

The only issue I had was rear tire spin in straight lines. Longtime drag racer, old habits die hard. But going up a turn (now at 7) on the front preload cured that.

I'm not new to power wheelies, as I tend to experience them at high RPM gear changes, but I'm liking the new experience of midrange style. Nice and smooth ...

Mike
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