Sand and Tiny Rocks Lodging in Spur

[MeBeMikey]

For the first time ever I had repeated issues with debri from the track entering the bodyshell and getting stuck in the spur. I was racing on a new astro track that had a few areas that were quite sandy and would cause over rotation in the corners when I'd go off the racing line, which in some areas was very narrow. (long sentence) I still managed 2nd overall though.

Are there any solutions to this. I'd hate to destroy a spur and pinion everytime I race there.

Thanks!

Btw: I used Losi BB pink in rear (27.5wt) and Associated Blue up front (37.5) and car was brilliant. Cut stag and worn Schuey yellows. Only 1 C4.1 beat me all day.