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  1. #1
    Join Date
    Sep 2004
    Metro, DC
    My Bikes
    Waterford RS22, Cannondale T1000, Univega, BMX, Trek mtn
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    Expected mileage on Campy Record Chainrings?

    Any experienced views on how many miles I might expect to obtain from Campy Record chainrings (53 and 42 T)? The Record Steel/Ti cassette will hold 5 to 7 thousand miles, the all Ti less so. I am coming up on 14K on a set of new chainrings and with the next cassette swap, I am wondering if I should just go ahead and replace the rings as well, before they start to slip, and ruin what would be no doubt a perfect ride. (Parts never fail when you are having a not so good ride.)


  2. #2
    feros ferio John E's Avatar
    Join Date
    Jul 2000
    My Bikes
    1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
    21 Post(s)
    1 Thread(s)
    I replace chainrings only when they begin to run a bit noisily or roughly. They will not fail or begin to slip abruptly; you will have ample forewarning, if you are sensitive to it. Also, they do not need to be replaced in pairs (or triplets).

    With the older 5-to-8-speed systems, I get ALOT of miles out of my chainrings. 9-speed rings wear somewhat faster, and 10-speeds are even worse. The popular contemporary mountain bike microdrive system also accelerates wear considerably, with fewer teeth gripping the chain and significantly higher force along the chain.
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

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