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XC racing - how often replace chain rings?

jsussexjsussex Posts: 118
edited July 2010 in MTB workshop & tech
how often would you replace the chain rings on an XC race bike? My kids been racing and training hard for about a year on the same chain rings - just replaced chain and cassette, should I change the chain rings too? Looking at them its hard to tell as even the new chain rings seem to have different siz/shaped teeth. Hope its not a stupid Q!

Also would you replace the chainset rather than the rings? the XT chainset is only 129.

Posts

  • nicklousenicklouse Posts: 50,675 Lives Here
    as needed.

    to many variables to say.

    maybe.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • .blitz.blitz Posts: 6,197
    You will get 1000's mi out of a Deore steel middle ring. Cheap as chips and only slightly heavier than a boutique alloy ring. My last one was toast when I replaced it - every tooth was like a shark's fin - and although shifting wasn't exactly crisp, it drove OK.
  • njee20njee20 Posts: 9,613
    I generally do a season, new kit in the spring, race all season, ride it through winter so it's well and truly trashed, then replace everything.
  • jsussexjsussex Posts: 118
    nicklouse wrote:
    as needed.

    to many variables to say.

    maybe.

    thanks for the advice, probably.
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