Quote:
Originally Posted by Seeker
... but the SV has a plain nut and it isn't locked at all. ...
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I'm not sure this is universally correct.
Out of interest, I took a closer look at our bikes at the weekend (Wife's Pointy SK5 and son's recently acquired Curvy '99 X), and both have a nut like this on the rear swingarm.
Maybe your previous SV had the standard nut swapped for a plain nut? I'm not sure something with no anti-loosening component is a wise idea in the relatively high-criticality environment of rear wheel axle.
FWIW, my 1987 Yamaha FZ600 uses a castle nut and split pin, so perhaps this type of nut is a 'modern' phenomena that many manufacturers are moving to?
(Having said that, I'll be bearing your story in mind and making sure to clean thoroughly before loosening for wheel removal, though I don't recall ever having had a problem in the past. Hopefully minor slackening for routine chain adjustment will remain trouble free.)