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Old 16-01-09, 08:06 AM   #11
MattCollins
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Default Re: Bike feels unstable

I would have replaced the head bearings if they had been loose for any period of time. Pounded bearings that feel smooth can be totally knackered... but try tyre pressures first.

Cheers
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Old 16-01-09, 08:23 AM   #12
Alpinestarhero
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Default Re: Bike feels unstable

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Originally Posted by Bear View Post

Which aren't 30 rear and 28 front like I had when I checked for the first time in 3 months today...
I should check mine too, might cure some of my handling woes

Soooo I'm worried you maaaay have knackered head-race bearings if they havnt been seated properly for so long. Here's the test: Find a suitable method to get the front wheel off the ground. turn the handlebars side to side - if you notice any notching, thats an indication the head race bearings arn't too healthy. I think also you give the handlebars a tug - if there is any movement, again, the head-race bearings arn't at their best.

In addition, how many miles as the bike got on it? SV suspension isn't the highest quality - the rear shock may be tired now aswell...although you wou;dn't notice a decline in handling overnight (not unless the damping unit failed and lost all the fluid inside the shock ).

As others have said, tyre pressures first.

One other thing; I know that in colder weather my SV feel heavier to turn in; you may be experiancing this. Wait for a warmer day, see how your bike feels. It may also be yourself, being cold and gripping the handlebars too tight etc etc.

Lets sort the problem with cheap ideas first, before considering more expensive and time consuming solutions!

Matt
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Old 16-01-09, 08:50 AM   #13
startrek.steve
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Default Re: Bike feels unstable

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Originally Posted by Luckypants View Post
Yes if they are out by a lot, the carcass squirming about makes the bike unstable. Worn tyres can feel very unstable to due to the uneven wear, cupping etc.
Whats cupping?
sounds nice!

Steve
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Old 16-01-09, 12:47 PM   #14
vardypeeps
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Default Re: Bike feels unstable

My SV650 is a right pig at the moment. Tyre pressures are fine as is everything else but my front and rear tyres are squaring off and it is an absolute bugger to ride!
Getting some new Avon Storms fitted tomorrow so all should be good then!
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Old 16-01-09, 03:43 PM   #15
Luckypants
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Default Re: Bike feels unstable

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Originally Posted by startrek.steve View Post
Whats cupping?
sounds nice!

Steve
A phenomenon where the tread becomes 'scooped out' into a cup shape, through wear. Makes handling interesting.

No is not nice!
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Old 16-01-09, 05:27 PM   #16
kwak zzr
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Default Re: Bike feels unstable

i'm a big fan of watching tyre pressures now since well err i had fun in a field
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