After cleaning the old cogs, I was quite shocked about the amount of wear, both with the steel cogs (11-15) as well as with the titanium cogs. For the record, this wheelset has only been ridden in good weather, the chain was cleaned and lubed after every ride, and I don't consider myself an aggressive shifter.
Please check the pics below - for comparison, each pic shows both the new and old cog next to each other.
My question: is this normal wear? How much life you believe these cogs have left?
Thanks for any insight
I had my first ride today with the new cassette, and shifting is like night and day. Much crisper, faster and accurate. This alone makes me believe the old cogs are kid of shot, which really bothers me as they are really not that old (2 cassettes per season would be rather excessive @ ~$350 a pop, no?).
Is this normal for Campagnolo?
Sorry if this is a stupid question, this has been my first year on a road bike and I am not that familiar with road component mileages.
the smaller cogs have alot more force applied to them which explains their accelerated wear. Alot depends on your style too (masher vs. high cadence spinner)
I've got about 2K on a chorus cassette without much issue, maybe you should stick with the heavier versions?
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Well, Campagnolo Super Record is not the lowest cost equipment choice. If you like it and are willing to pay up, great. If you want to save money, there are other choices within the Campagnolo lineup, not to mention more economical brands. The Super Record cassette stands out within the Camagnolo lineup as costing the most while lasting the least.incognitus wrote:2 cassettes per season would be rather excessive @ ~$350 a pop, no?
If you are running SR cassettes you will want to replace your chain every 1000-1200 miles if you want it to wear less. If you are simply training, consider an all steel Chorus cassette.
Like others have hinted at: you have very expensive stuff, so it'd be worthwhile checking your chain frequently. Once the chain wears too much, it will really start deforming the cassette.
Also: if you're putting 6k miles on the bike per year, you should consider a less expensive cassette--more consumable and durable, and possibly less expensive chains as well, since campy doesn't really have a reputation for putting out crap chains.
To conclude, it seems that you all suggest that this level of wear is rather normal.
Regarding my old chain - I checked the chain wear regularly, taking into account the peculiarities of Campy chains in this regard, and all was good (last time it measured ~132.4mm). I did not excessively cross-chain, and literally never drove the 11 cog on the small chain ring.
I have not tried to run the old cassette with the new chain yet - the former is now mounted on the spare wheels, which are only used in the winter or when I have to change the tubulars on the main wheelset.
Anyway, I guess I better stock some extra SR cassettes whenever they are on sale somewhere - I hear you socratease, but these SR cogs are just such a piece of art, guess I am hooked now...
So in your case you have a lot of wear on your steel cogs and you will get the same wear on a Chorus cassette because the cogs are the same.
If you change your chain more often you might get the better part of a season out of your cassette. But it looks to me like you got the full life out of that cassette.
em3 wrote:If you are running SR cassettes you will want to replace your chain every 1000-1200 miles if you want it to wear less. If you are simply training, consider an all steel Chorus cassette.
Depending on use and conditions, changing your cassette around 3000 miles might be considered normal, but the wear on the small cogs is pretty substantial. Given the pictures, I'd probably run a Chorus cassette and save the SR cassette (and a mated chain) for race days and/or special days. That's what I do. There's a hit to the weight, to be sure, but that is fine for training, given the cost of a Chorus cassette is but a fraction that of SR, provided you shop around (well, even if you don't).
Also, I agree with others too - that cassette has run it's course. It would shift awful with a new chain. Probably shifts subpar now. Consider it spent.
BTW is there any benefit to flipping your chain over periodically, seems like all the wear is on one side, would flipping it give you a "new" chain????
if all your wear is on those bottom 4-5 cogs, you might be able to buy just those steel cogs, and not have to pay for all that high dollar titanium goodness if it's not as worn?
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You may want to try the Miche Supertype 11 speed cassette. Individaul sprockets are availble for these. Custom cassettes can be done from Miche too.
I do 5-6K miles a year and for this reason I am sticking to 10 speed Veloce as it does not cost too much to run.
(Full test here: http://www.tour-magazin.de/services/qtr/epaper_4_2011/#/44)
socratease wrote:The amount of wear you have on the 11 tooth is absurd.
There's almost no wear on the 11T sprocket. Look closely at the picture (mentally rotate one of the sprockets by 180°) and you'll see that both new and old have that reduced tooth. In fact, all of the sprockets have at least one tooth like that. They all line up on an assembled cassette to aid shifting.
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