When accelerating out of bends the rear end tends to wobble.....the bike is on standard settings(99 r1)except ive raised the forks 5mm.....
any info welcomed.....bob

wobble or squat Bob?

Not to point out the obvious, but make sure all your nuts are tight :)

I went for a ride after I had someone change my tires and they had FORGOTTEN TO TORQUE THE REAR AXLE NUT!!!! :eek:

It wasn't until I got to the hills that I figured out what was up. The rear end was suddenly all over the place :confused:

What mileage do you have on the shock and what is your static sag set too? Also, is the shock showing any signs of wear?

its done 8000 miles and the shock seem fine...
come to think of it its more of a squat than a wobble as stated above...
all nuts and bolt are torqued to spec...:jump

Can you give us your suspension setup? pre-load/compression/rebound?

We might be able to help better.

Cheers.

Sounds like either your rear shock is buggered, or it's set too soft.

I managed to boil my rear shock at about 9k and used that as a perfect excuse to get some quality aftermarket gear. No more squats!

PS I find as I approach the big '40', my rear end wobbles a hell of a lot more than it used to!

everything standerd apart from the forks which are raised 5 mm

Depending on your weight, you'll probably want zero or one clicks off out from full for your preload (assuming you are in the 180lb category with gear... seems to be the average). You and a couple of mates should definitely try setting the sag.

Then try about 3 clicks out from full stiff for compression/rebound. It'll give you somewhere to start. You want the rebound to be set so that when you bounce on the suspension it doesn't pogo, but bounce right back to where it was and stop.

I would definitely set your bike up first before you go play around with the fork height.

Good luck.

thanks 4 the info spklzu....
i will have a play around 2morrow(weather permitting)
bob............

Oh yeah, a simpler item to check: tire pressure. I can usually tell if my rear tire drops a few psi cus it'll start handling like crap.

Let us know what you are running... now I know you can go check that in the rain :p

How's the weather in good 'ole UK? I was born in London but spent most of my childhood in Kenilworth, Warwickshire (near Coventry).

Cheers, and best of luck to you.

tire presures 36psi in both... i think thats 250 bar.....
and its heavy rain again. typical british summer..
bob
:jump

Yeah, the raining cats and dogs was a bit of a pain... but at least the grass looks green back home. Out here the hills are dryer than a 70 year old nun :)

If it's squatting the rear end compression damping is too soft. You may need more preload too

r1bob,

It all depends on your wieght, Im about 95 - 98 kg and 6ft. If your about the same try these settings as a starting point. Its what I am using at the moment and it works verry well.

Front:
====

- Raise the forks 9mm through the clamps.
- Preload: 5 1/2 lines showing. (5 is fine though)
- Compression: 6 clicks out from all the way in. (you my like 5 out std)
- Rebound: 5 clicks out from all the way in.
- Tyre PSI: 35psi

Rear:
====

- Preload: possition 9 out 9 (9 is max).
- Compression: 4 clicks out from all the way in.
- Rebound: 6 clicks out from all the way in.
- Tyre PSI: 38psi - 41psi

If your worried about the 9mm raise, dont be. The bike handels perfectly and the front to rear weight distribution is sweet.

Just enough squat in the rear to gain great tracktion. But the 9mm raise counters the under steering problem when exiting corners.

Good over all road surfaces, and fast to ride. The trick is to be smooth when riding get the most out of these settings.

Those chicken strips will be a thing of the past and touching pegs on the road more common. :D

Oh when exiting corners, at the point when you start to pick the bike up. Open that throttal and strart drawing big black lines on your way out. :D

Please also cheack the rear wheel bearings. On the race stand, try moving the wheel from side to side, to see if theres any play. If this is all OK then procceed to have loads of fun.......:thumbup

For more info on setups look at:
http://www.r1-forum.com/forums/showthread.php?threadid=8808&perpage=20&pagenumber=2