Can you use dot 3 brake fluid on a Honda st1100?

Yes, you can use DOT 3 brake fluid in a Honda ST1100, as it is compatible with the braking system. However, it's generally recommended to use DOT 4 brake fluid, which has a higher boiling point and can provide better performance under high-stress conditions. Always check the owner's manual for specific recommendations and ensure that the brake fluid used is clean and free of contaminants.