They make radiator guards for dirtbikes, maybe you can engineer something similar using this stuff.
https://www.summitracing.com/parts/...MIsBn968yvnRM7YdFBZSwRB-HwxwUVTgaAjD_EALw_wcB
https://www.summitracing.com/parts/...MIsBn968yvnRM7YdFBZSwRB-HwxwUVTgaAjD_EALw_wcB