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Blackspire Stinger- correct angle of dangle?

NorthwindNorthwind Posts: 14,675
edited August 2010 in MTB general
Just finished fannying about with my stinger (it doesn't mention in the fitment guide "First cut away half of bracket with an anglegrinder, then mash with a hammer", but it seems to work), just wondered if this looks alright?

03082010020.jpg

03082010019.jpg

Seems to work but I don't have as much time to test it out as I'd like so just looking for a second opinion
Uncompromising extremist

Posts

  • ilovedirtilovedirt Posts: 5,798
    What did you have to cut at the bracket with an angle grinder for? Looks alright to me, as long as it puts some tension on the chain.
    Production Privee Shan

    B'Twin Triban 5
  • nicklousenicklouse Posts: 50,675 Lives Here
    it does not need to put any tension on the chain at all.

    as its job it to stop the chain leaving the bottom of the rings.

    looks OK.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • ilovedirtilovedirt Posts: 5,798
    nicklouse wrote:
    it does not need to put any tension on the chain at all.

    as its job it to stop the chain leaving the bottom of the rings.
    I know that, but if it puts tension on the chain, you can be sure it's doing it's job properly, and it will be less likely to come off.
    Production Privee Shan

    B'Twin Triban 5
  • AnonymousAnonymous Posts: 79,667
    looks like the one on mine so i reckon it looks fine

    mine is in the string link of my signature for comparison.
  • nicklousenicklouse Posts: 50,675 Lives Here
    ilovedirt wrote:
    nicklouse wrote:
    it does not need to put any tension on the chain at all.

    as its job it to stop the chain leaving the bottom of the rings.
    I know that, but if it puts tension on the chain, you can be sure it's doing it's job properly, and it will be less likely to come off.

    it can not put any tension on the chain. there is no spring! the mech puts the tension onto the chain.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • ilovedirtilovedirt Posts: 5,798
    nicklouse wrote:
    ilovedirt wrote:
    nicklouse wrote:
    it does not need to put any tension on the chain at all.

    as its job it to stop the chain leaving the bottom of the rings.
    I know that, but if it puts tension on the chain, you can be sure it's doing it's job properly, and it will be less likely to come off.

    it can not put any tension on the chain. there is no spring! the mech puts the tension onto the chain.
    Technicalities aside, you knew what I meant.
    Production Privee Shan

    B'Twin Triban 5
  • NorthwindNorthwind Posts: 14,675
    ilovedirt wrote:
    What did you have to cut at the bracket with an angle grinder for?

    It was either that or the chainstay :lol:

    Thanks folks. Haven't a clue what I'm doing with these things really but it seems like a good idea for the hols.
    Uncompromising extremist
  • nicklousenicklouse Posts: 50,675 Lives Here
    ilovedirt wrote:
    nicklouse wrote:
    ilovedirt wrote:
    nicklouse wrote:
    it does not need to put any tension on the chain at all.

    as its job it to stop the chain leaving the bottom of the rings.
    I know that, but if it puts tension on the chain, you can be sure it's doing it's job properly, and it will be less likely to come off.

    it can not put any tension on the chain. there is no spring! the mech puts the tension onto the chain.
    Technicalities aside, you knew what I meant.

    No beacause if you wrap the chain around the ring more to add tension you are actually making the required chain length longer so the mech ends up in the same place as it was before.

    So no added tension or a too short chain. which on a fully is a bad idea and on a Kona a bigger bad idea.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • NorthwindNorthwind Posts: 14,675
    You calling my bike a Kona? Grr.
    Uncompromising extremist
  • nicklousenicklouse Posts: 50,675 Lives Here
    hard to tell.

    looks like Tuners pretend FSR set up.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • NorthwindNorthwind Posts: 14,675
    It does have its name written on the side in big letters also :wink:

    Thanks all, feeling much happier about it now. If worst comes to worst the roller comes off easily enough :lol:
    Uncompromising extremist
  • peter413peter413 Posts: 5,120
    Now Nick has said it, it does look like a Kona if you squint, sorry :lol:
  • KoilerKoiler Posts: 513
    nicklouse wrote:

    So no added tension or a too short chain. which on a fully is a bad idea and on a Kona a bigger bad idea.

    sorry to hijack but...

    what does tat mean exactly? i have a kona, and a stinger, fitted the same way as northwind.

    is it going to blow up? :shock:
  • AnonymousAnonymous Posts: 79,667
    Konas have large amounts of chain growth. That means, as the suspension compresses, the length from chainring to sprockets grows substantially.
    If you chain is too short, it can cause problems, since the mech will be unable to compensate for it.
  • KoilerKoiler Posts: 513
    thanks

    ok, so when i fitted it, i went from a triple (22/32/44) to a double (22/36) and swapped to the shorter caged SLX mech. i sized the chain using the big-big method but included the singer in the measurement.

    does that sound about right?

    i rarely, if ever use 36/32 and im soon to be swapping to an 11-28 cassette

    should i take the shock out and see what happens to the chain/ mech?

    im worried now.

    (again, sorry for hijackin)
  • AnonymousAnonymous Posts: 79,667
    nah, sounds fine. The problem occurs when the chain is TOO short. Fitting it big big (including stinger) will be fine.

    Personally, I don't think (off the top of my head - I can't remember the figures) that Konas do have particularly large amounts of chain growth, but Nick usually knows best.
  • KoilerKoiler Posts: 513
    thanks man!

    [/ hijack]
  • NorthwindNorthwind Posts: 14,675
    peter413 wrote:
    Now Nick has said it, it does look like a Kona if you squint, sorry :lol:

    Well, they both look like meccano cranes more than bikes if that's what you mean :lol:
    Uncompromising extremist
  • peter413peter413 Posts: 5,120
    Its just that swingarm/shock plate, its mahoosive :lol:

    Although, have you seen the one on a kona stab up close :shock: :lol::lol::lol::lol::lol:
  • NorthwindNorthwind Posts: 14,675
    If I get the 6 inch rocker it'll be even more ugly. Tempting...
    Uncompromising extremist
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