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  1. #1
    Senior Member
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    Cassette Wear Data Point

    First few rides of the year down, first ride was awful because turned out our cassette was worn out. With a new chain skipping was terrible in the largest four (ti) cogs of a Record cassette with about 1800 miles on it. I think I probably did one interim chain change too.

    Chorus for us from now on. The ti cogs on the Record didn't last long!

  2. #2
    Tandem Vincitur Ritterview's Avatar
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    Which cogs were worn? On my half-bike, I have a compact crank, and so I'm usually in the small cogs on the Record cassette. These are steel, but still wear out too fast. I've replaced these several times, while my larger Ti cogs are still fine.

    I used this cog switching as an opportunity to go from 13-29 to 12-29, by skipping the 16t.

  3. #3
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    Quote Originally Posted by Ritterview View Post
    Which cogs were worn?
    The ti ones, largest 4 on 11-25. Steel were OK. Replaced with Chorus.

  4. #4
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    Quote Originally Posted by mburchard View Post
    The ti ones, largest 4 on 11-25. Steel were OK. Replaced with Chorus.
    Are these 11sp or 10sp? It's becoming extremely difficult to find 10sp Chorus cassettes. The ones I do find are very expensive. I had to switch to Centaur. They are single steel cogs so are a bit heavier.

  5. #5
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    Quote Originally Posted by rmac View Post
    Are these 11sp or 10sp? It's becoming extremely difficult to find 10sp Chorus cassettes. The ones I do find are very expensive. I had to switch to Centaur. They are single steel cogs so are a bit heavier.
    I see what you mean about 10sp Chorus Cassettes, most shops don't carry them any longer. Niagara Cycles Works is where I usually get stuff domestically and they also don't carry them. Try Chain Reaction Cycles. They ship free from the UK if you order over $230 worth of items.
    http://www.chainreactioncycles.com/M...?ModelID=26023


    I noticed that the 10sp are more expensive than 11sp.
    2013 Specialized Roubaix SL4 Expert, 2009 Ritchey Breakaway Cross, 2008 Trek T1000 Tandem, 2010 Specialized Tricross Sport, 2006 Trek Madone 5.2, 1995 Specialized Rockhopper A1 FS

  6. #6
    Senior Member
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    Quote Originally Posted by rmac View Post
    Are these 11sp or 10sp? It's becoming extremely difficult to find 10sp Chorus cassettes. The ones I do find are very expensive. I had to switch to Centaur. They are single steel cogs so are a bit heavier.
    10 speed. Local shop actually had a Chorus 10 sp 12-25 in stock!

    There are 3 12-25s on eBay at $170: http://cgi.ebay.com/CAMPAGNOLO-CHORU...9#ht_742wt_789

    But you are right, the 10sp are a little hard to find. I will probably lay in a small supply ...

  7. #7
    Senior Member
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    Quote Originally Posted by rmac View Post
    Are these 11sp or 10sp? It's becoming extremely difficult to find 10sp Chorus cassettes. The ones I do find are very expensive. I had to switch to Centaur. They are single steel cogs so are a bit heavier.
    10 speed. Local shop actually had a Chorus 10 sp 12-25 in stock!

    There are 3 12-25s on eBay at $170: http://cgi.ebay.com/CAMPAGNOLO-CHORU...9#ht_742wt_789

    But you are right, the 10sp are a little hard to find. I will probably lay in a small supply ...

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