|Chainrings Wearing Too Fast||Fez|
Apr 2, 2003 7:12 PM
|I've read all the posts about chain, cassette and chainring wear. Many people think the more frequent you change the chain, the less frequently you replace cassettes and chainrings.
I clean and monitor my drivetrain frequently. Virtually no chain wear (checked w/ Park tool) and virtually no cassette wear in 3,000 plus miles.
My problem is I notice a fair amount of chainring wear, especially on the big 53 ring. I probably spend less time on it than the 39 ring, so I'm guessing all the wear must occur on the actual shift up.
Anyone here have a solution for keeping those chainrings fresh? I thought these were the most durable part of the drivetrain.
|What chainrings ? Shimano or Campy?||Juanmoretime|
Apr 3, 2003 2:02 AM
|I just went to Campy so I can't say what type of life you should be getting. Dura Ace 9 speed, chains abour 2500 miles, about 6000 on a cassette and 15,000 miles on the rings. Do you frequently ride in the rain?|
|What chainrings ? Shimano or Campy?||Fez|
Apr 3, 2003 7:39 AM
|Shimano Ultegra 9speed chainrings on both bikes.
Bike #1 3,500+ miles:
No measurable chain wear, no visual cassette wear, small chainring OK, big chainring starting to have burrs.
Bike #2 1,000+ miles:
No measurable or visual wear anywhere EXCEPT for the big chainring, which looks like the burrs are starting to form.
I ride in the dry mostly and keep everything clean. I look like I am doing fine on the chain and cassette. If I extrapolate the wear, I estimate I won't even make it to 5,000 miles on the big ring.
I do tend to shift in and out of the big ring due to the terrain I ride and due to my desire to ride in the middle of the chainline and not in the extremes. Is the shift up to the big ring that abrasive?
|Seeing what you believe||Kerry|
Apr 6, 2003 2:32 PM
|Chainring wear is determined by how many links of a new chain can be lifted off the chainring. I'd be VERY surprised if you're really getting any significant wear. I suspect you're interpreting cosmetic wear as being actual grinding away of the metal.|| |