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+--- Thread: Chain advice (/showthread.php?tid=81778)
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Re: Chain advice - darrsi - 17-06-20
(17-06-20, 11:36 AM)fazersharp link Wrote: Not sure what I am looking at but the front sprocket looks like the centre is domed in the picture. If that is the case then it also looks like it has the old 9mm nut, so when changing the sprocket it will need the 12.5 nut. http://foc-u.co.uk/index.php?topic=24665.msg288535#msg288535
Think that could already be the 12.5mm nut as it is flush with the end of the shaft thread. If it was any bigger it would over hang.
The older 9mm which should be replaced leaves a bit of thread showing (9mm pictured below)
Re: Chain advice - fazersharp - 17-06-20
(17-06-20, 11:50 AM)darrsi link Wrote: [quote author=fazersharp link=topic=26260.msg316477#msg316477 date=1592390197]
Not sure what I am looking at but the front sprocket looks like the centre is domed in the picture. If that is the case then it also looks like it has the old 9mm nut, so when changing the sprocket it will need the 12.5 nut. http://foc-u.co.uk/index.php?topic=24665.msg288535#msg288535
Think that could already be the 12.5mm nut as it is flush with the end of the shaft thread. If it was any bigger it would over hang.
The older 9mm which should be replaced leaves a bit of thread showing (9mm pictured below)
[/quote]Yes that is why I mentioned the domed aspect of the front sprocket, so if it is domed then a 12.5mm nut would not be flush but a 9mm one would, as in his picture. But cant work it out, it maybe one of thoses optical illusions where a concave object looks convexedÂ
Re: Chain advice - Gnasher - 17-06-20
Non Yamaha lock nut.
