Loose sprocket?

[ADSrox0r]

Reet, so I decided to slap on a new chain and sprocket 'upgrade' on the Yibber as my old one was starting to sound a bit 'agricultural'.

The front sprocket was quite wibbly when I took it off, but the bolts were fully tight and the output shaft has no up/down movement so the bearings are fine.

Put the new sprocket on (used the old spacer) and it wobbles a fair bit still.

Made a rather tedious little video of it ... https://www.youtube.com/watch?v=DClzEvwxQj0&feature=youtu.be

Also took a photo of the bare shaft (oo-er)

It's a 2011 with only 5000-odd miles on it.

What ye think? Perfectly normal or potential fireball of doom?

[Vincent]

They do move a bit, it all depends how much. Looking at the piv, one of the splines does seem to have a "squashed" bit but I doubt it would do much harm, just might make pulling off a bit snatchy.
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Space Is Deep

[ADSrox0r]

Yeah the splines are disappointingly soft for 5000 fairly easy miles.

I'm wondering if I just wang a spacer like an appropriate sized washer between the sprocket and the retainer it might take out the lateral 'wiggle'?

[Vincent]

It really doesn't matter about any side-to-side movement on the shaft, most drive shafts have some end float on them anyway.
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Space Is Deep

[Pete.]

Normal, stop worrying. It's a bit more loose than you'd expect for 5k but nowhere near as bad as some.

Grease the splines to reduce the rate of wear.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good