Rear Sprocket Movement - Whats normal?

Still the most important introductory info..
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Rear Sprocket Movement - Whats normal?

Post by exup » Tue Mar 16, 2021 11:18 am

Hi (this is a cross post from KTM UK forum)

I have a 1290 Super Duke R 2014 but this would apply to any of the first model and GT range seeing as they all share the same parts.
Could anyone just check to see if they have as much play in the sprocket carrier/cush drive. They are not cheap to replace, so before spending big I just want to know if this is normal.


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Re: Rear Sprocket Movement - Whats normal?

Post by muckweed » Tue Mar 23, 2021 7:41 am

Just checked mine for you. It moves a tiny amount, less than a mil ie. a lot less than yours. No suggestions to your problem though, sorry.

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Re: Rear Sprocket Movement - Whats normal?

Post by Joe1290 » Thu Mar 25, 2021 4:18 am

Sorry I haven't been checking this forum often.

There should be no play in the rear sprocket. I replaced my cush drive assembly at 70,000km, which was a little overdue. New chain and rear sprocket at 60k was destroyed within that 10k due to cush drive wear.
My bike is fairly stock, so anything poking out more HP should probably be checked from 50,000km onward.
Mine will be due for replacement again in the next 5k or so. Currently at 125,000km.

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