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  • Yup - they come from the manufacturer with a protective coating to stop them being turning brittle in storage iirc. This needs removing as it is very slippery, normally you wouldn't notice it as it is removed very quickly on the road as its much more abrasive, but siberian pine is very smooth.

    120 grade sandpaper is probably a bit coarse - it will do but will remove a fair bit of tyre.
    I would advise against riding them on the concrete outside as you will pick up loads of dust/debris on them which you will then place on the track when you ride it.....not a good idea.

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