Is this a Chorus cassette?

maddog 2
maddog 2 Posts: 8,114
edited April 2009 in Workshop
I'm about to sell a 10spd cassette on ebay but wanted to check which model it is. It's off a donor bike and there are no obvious markings on it, other than the tooth number.

I reckon it's a Chorus - here is a pic

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it weighs 229g (without the lockring) which according to weenies makes it a Chorus. Record is lighter and everything else is heavier.

It's 12-25 and the sprockets are 12,13,14,15, [16+17], [19+21], [23+25]

what d'ya reckon.....
Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer

Comments

  • Steve928
    Steve928 Posts: 314
    Looks like Record to me.

    I thought the rule for 10s was:
    - last 2 sprockets on carrier = Centaur (pre '09, '09-> all seperate)
    - last 4 sprockets on carriers = Chorus
    - last 6 sprockets on carriers = Record.

    The spacers look like Record also.
    Are the last 4 cogs in Titanium?
  • maddog 2
    maddog 2 Posts: 8,114
    my judgement was purely based on weight, that's all. The bike did have Record mechs so it could easily be Record.

    The last 4 cogs look like steel to me, but I don't have it in front of me right now so I can't confirm.

    I'll check the weight again tonight. Weenies has the 12-25 as sub-200g
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • markos1963
    markos1963 Posts: 3,724
    Could you check with a magnet to see if they are steel or Ti?
    Norfolk, who nicked all the hills?

    http://farm4.static.flickr.com/3013/243 ... 8d.jpg?v=0
    http://img362.imageshack.us/my.php?imag ... 076tl5.jpg
    http://img216.imageshack.us/img216/3407 ... e001af.jpg
  • Monty Dog
    Monty Dog Posts: 20,614
    Looks like Chorus - titanium sprockets are a different colour - these all look the same colour i.e. steel
    Make mine an Italian, with Campagnolo on the side..
  • maddog 2
    maddog 2 Posts: 8,114
    all sprockets are steel and it's definitely 228g

    my money is on Chorus
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • Steve928
    Steve928 Posts: 314
    Yeah I think I've given duff imformation above: looking through the Campag catalogue there's a cut-away drawing of a Chorus cassette showing the last 6 sprockets on 3 alloy carriers.
    You live and learn.
    Sounds like Chorus = Record without any Ti sprockets.
  • Wappygixer
    Wappygixer Posts: 1,396
    Chorus only has 2 lots of sprockets on alloy carriers.
    Record was also made in full steel to but with more sprockets on alloy carriers.
    My Centaur has first 2 on alloy carriers, My Chorus has first 4 on alloy carriers.
    I'd guess its Record
  • maddog 2
    maddog 2 Posts: 8,114
    here we go... :wink:

    doesn't it depend on the teeth count as to whether there are two or three spiders?

    I've been trawling the interweb and seen some Chorus 12-23s with two spiders and some 12-25s with three. The thing is the steel Records are just not 229g, not according weenies.

    WHY DON'T CAMPAG JUST STAMP THE THINGS ?
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer

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