I keep getting vaginal bv and yeast infections due to riding my bike. what are some tips i can do for that to not happen? i get them w/out riding 2!

Likely unrelated: Riding your bike is likely NOT causing you to have bacterial vaginosis or vaginal yeast infections. Have you discussed this with your Gynecologist? Are you sexually active? When was your last vaginal exam, incl. PAP? You will likely need appropriate tx with antibiotics and/or antifungals to treat your condition. If bike riding was a cause, imagine how many women would be affected! See your doctor.