[TheMagster]

26,000 mile sprocket change with new DID VX2 gold chain. Wear was not bad, just a part of good routine maintenance.

 

[Rebel13]

Sprockets look good, I would keep using them if I where you.

 

[tptam63]

awwwwww

 

[TheMagster]

Front sprocket showed some wear but the rear looked like new! Keeping the rear for a spare. Chain definitely needed replacing.

 

[fjones]

17,000 miles and front sprocket is worse than toast. I live on a dirt road and the way the cover, over the front sprocket is designed, all the sand and oil built up around the sprocket and this is the result. Got a new sprocket and I think the chain and rear sprocket should last another 10,000 miles or so. The channel, in front of the of the sprocket, allowed the sand and oil to pack against the sprocket and this is the result. I change oil and filter at 5000 miles and I'll wash that area out then. Didn't expect to find that. This is the first time I've looked in there, since I got the bike.

 

[Rebel13]

17,000 miles and front sprocket is worse than toast. I live on a dirt road and the way the cover, over the front sprocket is designed, all the sand and oil built up around the sprocket and this is the result. Got a new sprocket and I think the chain and rear sprocket should last another 10,000 miles or so. The channel, in front of the of the sprocket, allowed the sand and oil to pack against the sprocket and this is the result. I change oil and filter at 5000 miles and I'll wash that area out then. Didn't expect to find that. This is the first time I've looked in there, since I got the bike.

Holy smokes that is bad! If sand was the case I would change the chain too, the chain should also be noticeably worn. I'm thinking maybe the chain was too loose or too tight .

 

[jfc77320]

I would definitely replace the chain as well since there had to be a tremendous amount of slippage. This has to be the worst worn front gear I've ever seen.

 

[RedBaronRider]

Timely thread, as I just was informed that I'll need a new chain in 4K miles and my sprocket is showing wear. She's got 16.5K on her.

 

[fjones]

Holy smokes that is bad! If sand was the case I would change the chain too, the chain should also be noticeably worn. I'm thinking maybe the chain was too loose or too tight .

I have never seen a sprocket do that. The WEE would go 15,000 and I'd change the front sprocket only and run another 12-15,000 and the Front sprocket never got that bad. I checked the chain, in different spots, on the rear sprocket and it's staying very tight against the sprocket. The chain has no loose rollers and the rear sprocket looks real good, so there should be another 10,000 miles left in it. The shape of the cover, over the sprocket, channels the sand to where it sits and covers the front of the sprocket. I have a lot of sand to ride through, every time I go in and out of here. This bike was not designed for my road. It does handle it better than most bikes I've driven in and out of here.

 

[fjones]

I would definitely replace the chain as well since there had to be a tremendous amount of slippage. This has to be the worst worn front gear I've ever seen.

I don't drive very hard on takeoffs and I only heard slippage one time, when coming back from a state office, for the grandkids. I thought it was just a loose chain until I pulled the cover. Oops it's time for a new sprocket. Ordered two so I'll have one on hand. I'll be pulling that cover at every oil change now and washing that area out. I can fill pot holes, in the road with what comes from that cover.

 

[Rebel13]

I know what the front sprocket area looks like, it is actually my current avatar, a very common design. For grime to collect in there is normal from lube and debris fling. However, debris should not be flowing through there like a sand blaster. Afterall, the chain is elevated and not in contact with the ground to collect constant debris. Sure, some may get on there but not that much to cause a problem. As I said before, if it was, the chain would also show signs of damage cause the debris would be all in there just as much. What is shown is that the teeth themselves are wore completly out. Your right, the front sprocket should outlive the rear sprocket typically. Sprocket teeth wear is from the tension of push and pull from acceleration and engine braking. Yours shows common wear, but just extreme. If it was sand, like a sand blaster, more than just the teeth would be polished from the debris. It Isn't, so I believe it is typical chain wear. With such milage and wear, I am assuming the chain was too loose or too tight. The front sprock has the least area and more rpms than the rear sprocket and the chain, therefore it gave out the fastest.

 

[fjones]

I know what the front sprocket area looks like, it is actually my current avatar, a very common design. For grime to collect in there is normal from lube and debris fling. However, debris should not be flowing through there like a sand blaster. Afterall, the chain is elevated and not in contact with the ground to collect constant debris. Sure, some may get on there but not that much to cause a problem. As I said before, if it was, the chain would also show signs of damage cause the debris would be all in there just as much. What is shown is that the teeth themselves are wore completly out. Your right, the front sprocket should outlive the rear sprocket typically. Sprocket teeth wear is from the tension of push and pull from acceleration and engine braking. Yours shows common wear, but just extreme. If it was sand, like a sand blaster, more than just the teeth would be polished from the debris. It Isn't, so I believe it is typical chain wear. With such milage and wear, I am assuming the chain was too loose or too tight. The front sprock has the least area and more rpms than the rear sprocket and the chain, therefore it gave out the fastest.

I do tend to run a chain, on the loose side, but within spec. The oily sand accumulated, in that cover, on the front side of the sprocket, would have more than filled a coffee cup. I ran the WEE the same way for seven years and maybe some gator teeth showing, but never anything like that. The chain appears to be good. No O rings missing and a tight fit around the rear sprocket, and no loose rollers in the chain. I've always used plenty of lube.

 

[jfc77320]

I do tend to run a chain, on the loose side, but within spec. The oily sand accumulated, in that cover, on the front side of the sprocket, would have more than filled a coffee cup. I ran the WEE the same way for seven years and maybe some gator teeth showing, but never anything like that. The chain appears to be good. No O rings missing and a tight fit around the rear sprocket, and no loose rollers in the chain. I've always used plenty of lube.

Just out of curiosity, are you running chain oil or chain wax? Chain oil will pick up sand and over time cause it to cake up creating something akin to a block of pumice. Chain wax would be better to use in drier, dusty, or where sandy conditions prevail. As to the wear, I would expect to see severe wear like this due to a misadjusted chain or possibly a combination of the two, I would also expect to see severe wear on the chain, especially if it was due to abrasion from sand.

 

[doyle]

That is one wore out sprocket, has aanyone ever seen one that.

 

[JH700CTX]

@fjones i'm guilty of not removing the cover on it (since I bought it) too, i need to do that soon. Next month i'll buy the sockets and stuff to do that.

There has been more sand and other debris on the roads building up on my bike this winter then when i was started riding last winter.

 

[fjones]

@fjones i'm guilty of not removing the cover on it (since I bought it) too, i need to do that soon. Next month i'll buy the sockets and stuff to do that.

There has been more sand and other debris on the roads building up on my bike this winter then when i was started riding last winter.

Just need an 8mm socket and a 5mm allen and it come out with a little tweaking. I'm checking at every oil change, from now on.

 

[fjones]

Just out of curiosity, are you running chain oil or chain wax? Chain oil will pick up sand and over time cause it to cake up creating something akin to a block of pumice. Chain wax would be better to use in drier, dusty, or where sandy conditions prevail. As to the wear, I would expect to see severe wear like this due to a misadjusted chain or possibly a combination of the two, I would also expect to see severe wear on the chain, especially if it was due to abrasion from sand.

I use the left over oil from the oil change in a chainluber. When I used the chain wax, on the WEE, it was worse with collecting sand grit. The chain oiler seems to sling the grit off the chain better. I changed the WEE over to oil from the wax for that reason and it worked good. The gathering up, in the cover,is the culprit. Never had that with the WEE. I have about a half mile of sugar sand, on this road to the house and when it dries out, it gets about 3" deep. The CTX handles it very well, much better than the WEE.

 

[Raggoo]

how many miles with auto oiler before replacement of chain or adjustment needed

 

[jfc77320]

how many miles with auto oiler before replacement of chain or adjustment needed

There are no guaranties. A well lubed chain will normally last much longer than one periodically lubed. As far as adjustments, the chain will ultimately stretch over time as it wears out and requires periotic adjustment. You would normally do this every tire change but worn out chains will need more frequent adjustment.

 

[Raggoo]

thanks for info JFC love this forum site!