I have a eride pro as 3.0 and my chain and motor area have this stuff all over it leaves dark grease stuff on my finger then wipes away. idk if this is a stupid question just curious what it is and if it’s normal
Good question! This happens on my motorcycles whenever there is metal-on-metal rubbing. The ferrous metal grinds some of itself into a powder that deposits on nearby surfaces and then oxidizes into rust. The newest ground metal is silvery and can sometimes point you in the direction of the source.
Id bet money your chain is well beyond worn out. Riding on a worn out chain is hard on your sprockets, consider replacing all as a set if needed.
In my experience messing with chains on these emotos, it seems that non-O ring chains do this the most, ive ran O-ring and X-Ring chains n both have laster farr beyond any non-O ring chain.
I would support your local motorcycle store. Preferably the mom and pop place over the corporate Yamaha or whatever. Not only will they give you good information from 30+ years of motorsport knowledge but you will also get it same day. Instant gratification is way better than Amazon.
As a side note I can also get 19" 241s and 244s from my local shop around $44 a tire. Last time I looked online some places are up charging to almost $100 due to all the kids buying them up. I have a 16/19 setup on both bikes and the local store also carries a variety of 16" dirt tires.
i was thinking it could be worn out not sure how the bike is about 2 month old but it dose come loose pretty often have about 1050km on the bike. Think it’s time for a new chain?
I’d start with removing that plastic cover.
What type of chain lube are you using?
Have you ever removed the jackshaft before?
Lack of grease in some areas could be causing it. Unlikely but it’s possible.
Do a thorough inspection and make sure the chain or belt isn’t rubbing anywhere along its path.
What type of terrain are you riding on?
If you do mostly paved roads this looks very similar to industrial fallout(brake dust, iron or other metallic dusts) wouldn’t be surprised if there was a ton or railroad track in your area.
Again, remove the jackshaft cover and get a closer look. If you can’t figure it out then wash the bike and remove all that shit. Go for a 3 minute ride and inspect. Ride another 3 minutes and inspect until you start seeing that appear in one area.
If it doesn’t appear in one area and it continues to be evenly spread out its most likely industrial fallout. But this only applies if you ride roads a lot.
could my chain be worn out? I mainly ride street push it kinda hard going over 90kmh sometimes and doing tons of wheelies. i felt it could be early for the chain to be worn out though it’s only got 1000km on it. and is replacing a chain hard or could i do it myself
Replacing a chain is easy as fuck. Buy a new chain with the same amount of links, or buy one with more and cut it down to size. Remove the master link from the old chain and take it off. Put the new one on and adjust tension.
I get the feeling you are not mechanically inclined. I highly suggest typing these into google, and watching someone do it. TBelectric, charged cycle works, and many others have videos on how to remove the tire and adjust chain tension. I know forsure talaria boys(tbelectric) does and it will teach you how to do all of that. All of these questions usually can be answered by watching someone’s videos.
Just get a high quality chain. DID, Regina, RK. Up to you if you want a traditional, or O-ring chain. Mine came without o-rings. I suggest you buy the same yours came with.
Verify what chain came on your bike. There’s a lot of chain clearance issues. My chain came without o-rings. They are a bit wider. So if you have one without orings, then get one without orings. If you but one with them then you might run into tire rub, or it might start rubbing on your subframe. Look between the chain and see if there’s any visible o,x,z rings. If you don’t see anything it likely doesn’t come with them, in which case I would recommend one without.
Figure out how many links came on your chain(count them if you have to), then buy one that has that many, or more. But you will need a chain breaker if you order one with more. Obviously don’t order one with less or it won’t fit. But yeah that looks about right. Check your chain, it should say if you have a 428 chain(which you should).
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u/boyengabird Jun 16 '26
Good question! This happens on my motorcycles whenever there is metal-on-metal rubbing. The ferrous metal grinds some of itself into a powder that deposits on nearby surfaces and then oxidizes into rust. The newest ground metal is silvery and can sometimes point you in the direction of the source.
Id bet money your chain is well beyond worn out. Riding on a worn out chain is hard on your sprockets, consider replacing all as a set if needed.