Was out on my first club run today . 60miles round trip . On the ride the guy riding on the right of me ran over a stone and that stone hit my bike .thought nothing of it but I quickly heard a rubbing noise on my front calipers only under breaking . Took the wheel of to see if anything had anything jammed in the break block but no . Looked at the rim and it seems the stone hit the rim and it now has two marks Which protrude out a bit and that's what is causing the noise . Can I do any thing to fix it like a file or sandpaper or somthing ?