Rear wheel/sprocket alignment

[Nobbylad]

Took advantage of the brief respite in the rain yesterday to use my new paddock stands and clean the bike.

Was checking the chain tension and then the rear tyre when I noticed a slight 'wobble' on the rear wheel. Spun it round a few times and then to make sure I wasn't being paranoid, started the engine, put the thing in 1st then sat at the back watching the rear spin.

By the looks of it, there is a couple mm sideways movement on the chain side as the wheel turns, however if you look at the right side, it looks to be running true.

Is this anything to worry about? Could it just be that the chain wheel/sprocket is not tightened/put on correctly?

As I say, it's only a small amount, but the chain does move side to side slightly as it's running.

might be wheel alignment, use a bit of string and check it out first

You mean on the sprocket or the whole wheel?

Sounds like the sprocket carrier bearing or cush-drive rubbers might be shot.

With the bike turned OFF, get hold of the rear sprocket and see if you can wobble it.

If it is the whole wheel, it might even be your wheel bearings gone ...

[Nobbylad]

It looks like the sprocket isn't flush/against the wheel in the same way all the way around and that there is a gap of around 3-4mm at one point, which when you look at the back wheel from behind, moves the chain side to side ever so slightly.

I was wondering if maybe it was like that as there is no load on the wheel with it being on the paddock stand or whether a certain amount of lateral movement would be within tolerance etc. Or should it run perfectly true, even on the stand?

The bike's done 3k miles and will be going in for the 4k service in a couple of weeks, so was going to mention it to them then....or should I get it sorted a.s.a.p?

[embee]

There's very often a small amount of "swash" on sprockets mounted the way they are on the SV. Best thing is to do an accurate measurement, you can use a piece of wire held onto the swingarm set to touch at the high point and measure the gap at the low point if you don't have any accurate equipment like verniers etc.

Up to 1mm is pretty normal I'd say, a couple is nothing to worry about, providing the sprocket/carrier isn't actually loose as said by others.

Hello, Just fitted new Chain and Sprockets. Everything torqued to spec and I too have the same sprocket only wobble.

It appears on mine to be the sprocket carrier has seated unevenly.

I removed the wheel and cleared out the cush rubber area of any crud. Everything in good condition (low miles bike I have owned from new).

Mounted carrier evenly not forced in.

Fitted again and still the carrier is uneven once turned over!

Will this sort itself out once ridden at speed?

Cheers