Downtube Gravel Bike Shield

I built a custom purple direct-mount downtube gravel shield to protect my Cannondale Topstone downtube from errant gravel bits. The shield takes advantage of the Cannondale's downtube direct-mount bosses; it measures about 2.5" x 9" and provides good protection for my bottom bracket and lower downtube without getting in the way of pedaling or maneuvering.