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  1. Ok-Positive-6611 on

    The little metal tag is to protect your frame from getting stabbed by the stabilising screw on the front derailleur. But if your bike has a pre installed derailleur plate then there’s a very high chance you don’t need it, because the screw will push against it

    The other one is a cassette spacer

  2. The circular thing looks like a cassette spacer. On some wheels you need to fit them between the hub and the cassette. I guess this one was just a spare. Other thing, I don’t know.

  3. Looks like a cassette spacer on the bottom. The piece of plastic in the top is a little toy to play with when you can’t ride.

  4. The ring is a 1.85 mm spacer used to install a 8/9/10 speed cassette on HG freehub that normally takes 11/12 speed cassettes.

    The little plate is supposed to be glued down where the support bolt of the front derailleur hits the frame.

  5. At the top is a support plate for a Shimano front derailleur. It should have a self adhesive pad on the back as it’s designed to be stuck to the frame, behind the derailleur. There’s a small bolt inside the derailleur that you use to adjust the angle of the cage (and brace the derailleur) once installed. This plate protects the frame and gives that bolt a flat surface to ‘bite’ against.

    Then you have a cassette spacer. This goes onto a Shimano HG pattern freehub body before you install a 11-34 or 11-36 cassette.

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