I saw at ebay, 10 speed cassette compatible with shimano, it's very light 103 grams, but the material is alloy with ceramic coated, it says, the cassette can be used up to 3000K, is it true? or may be more than 3000K, because if it's 3000K the age for me is only about 3 months or less riding.

Have any of you ever used one ?


  • Could you please provide more information about the cassette you're referring to?
    – prototoast
    Commented Feb 14, 2012 at 8:23
  • I came across this question while cleaning up the ceramic tag, which should focus on ceramic bearings. Presumably this refers to a ceramic coating on aluminum race day cassettes. With rims, ceramic coating may improve lifespan, but they’re getting squeezed by rubber brake pads. A cassette is in contact with steel rollers driven by your legs. I doubt ceramic would do anything to improve durability. Parties who are really still interested may wish to check out weightweenies.com’s forums for user experiences.
    – Weiwen Ng
    Commented Dec 3, 2021 at 15:57

1 Answer 1


There are a lot of small boutique-factories machining extra-weight-weenie parts that serve three purposes:

  1. Provide some weight advantage to very high-end racers who reached the limit of their training levels. That could mean positions in a very high-level race;
  2. Satisfy some folks (whose population is increasing) who don't mind throwing money out the window to have the most exotic and customized extra-high-tech bikes;
  3. Feed the Weight Weenie Contest members with lots of ways to shave weight of bikes they don't necessarily ride (but most probably take a lot of pictures hanging from scales to post online).

(ok, that was somewhat a bitter answer, but I think this is not far from the truth)

And, yes, this means 3 months of riding, then to the thrash can, for the cassette you mentioned. How can anyone afford that?!?!?!?

  • better use my steel shimano then...
    – Rick Ant
    Commented Feb 15, 2012 at 3:00

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