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Front sprocket lock washer (aka locking plate) pretty rusty looking. Should I replace?

682 Views 12 Replies 5 Participants Last post by  DukeofSeven
Hi all,

So I was cleaning out the gunk out of the front sprocket and I noticed that the somewhat diamond shape lock washer on the front sprocket is looking rather brown. I'm not noticing anything mechanically wrong with the bike, but out of an abundance of caution this has me a little concerned.

Should I replace this?

And a secondary question for those who have messed with this part of the bike, is it just a simple replace with 2 screws or are there any gotchas?

Thanks y'all.
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pop the sprocket off,

clean it all with an anti-rust compound (spray).. then do it again.. then do it again.. then do it again..

when it stops running rusty fluid all over the place, blow it all off and grease the splines (sprocket, shaft and lock plate) with a synthetic grease, then reassemble it.

It will stop rusting now.

Edit: by the way, your center rollers are crying dry.. you really need to lube them, they spin.
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What J-Hoe said... yeah, these things i point to in the picture. They spin, but are not sealed; they spin as they slide on the chain sliders.

If they're not properly lubed, they will gall the pins they are supposed to spin free on. And since they likely won't then center properly, they will wear out your sprockets (mostly the front one) faster than you can say Oblivioso!

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Must be all the riding in the rain
Yeah, that'll definitely kill it. I live in SW FL, god help me (forget I said that), and the first year I owned my bike, I rode in rain at least twice a week. Intense rain. It killed my first chain.

Now I find myself lubing the chain once a week, I put on around 36 x 5 miles a week. The o-rings aren't an issue, since I stopped using ultra-sticky sprays; the center rollers are the main focus of my attention, and the slides of course. Slick and smooth makes it all ultra-predictable, no surprises. (y)
I've been using maxima
Funny you should say that, and I've always been a proponent of "ChainWax"... but of course I came from the situation of 2-stroke non-oring chains, and that was a good solution for them.

The problem I ran into, on this bike, was when I went to an X-ring chain. The sealing edges of those seals are much finer, and seemingly less tolerant of the stickiness that is Maxima ChainWax.

I've tried other sprays, like Banana Slip and even ProHonda w/Moly, but in the end I decided on a synthetic grease (for its durability and perf in general). I think I posted somewhere here about that recently.

But like KTMasean says -- and of course I'm paraphrasing a bit -- as long as you are happy with [your own decisions].
This is why I’d suggest lubing when it needs it and not by mileage.
I swear, one of these days, you're gonna teach me how to use less syllables. i mean, right? 😂
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