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  1. Definitely keep. They are used to rough up the surfaces when patching the tube. Before the rubber cement goes on.

  2. MOUATABARNACK on

    It’s to sand down the area you’re going to apply the patch, to make sure it sticks well.

    Btw cool name

  3. Same as the sandpaper that comes in a patching kit, to roughen up/remove surface finish of the inner tube before applying the glue to aid the sticking/vulcanising.

  4. Imho, better to replace it with a small piece of sandpaper. I think the only downside is crappy sandpaper can loose some if it’s grit, but nothing a bit of blowing can’t fix and imo it works better than these pieces of metal.

  5. Random_User4u on

    You only REALLY need them for patches that utilize rubber cement/glue. Most modern glue-less patches don’t NEED that, but also not saying that scuffing doesn’t help. Most glue-less patches come with a small sandpaper square that does the same in a lower profile package.

  6. That’s what you use to scuff up your ass cheek before injecting EPO for your Tuesday Taco Group Ride

  7. dallascyclist on

    The UCI makes you kneel on these if they catch you wearing long socks. There are two, one for each knee while you genuflect to the book of rules.

    Otherwise you use them to rough up the tube before applying glue and a patch, part of the vulcanizing process for rubber.

  8. Aggravating-Bug1769 on

    Scuff pads, to rough up the rubber around the punchers before you apply glue .

  9. If your rear ain’t sore enough after a ride, these are used to rough em up for better camaraderie among fellow riders!

  10. I would send one back and ask for the sandpaper. You are supposed to have the grater for the chalk and sandpaper to prepare the tube.

  11. I would send one back and ask for the sandpaper. You are supposed to have the grater for the chalk and sandpaper to prepare the tube.

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