We carry items for wound management, breaks, basic meds and dental. You can buy a good first aid kit at one of the outdoor stores online or Touratech-USA. Get one that is an Extended Day Backpacker or 3-4 person kit. These kits usually have the basics for a motorcycle trip. They usually don’t have a SAM splint, so pick one of those up along with a couple ace bandages. One other thing that we do for every multi-day trip, is to gather important information about each rider: allergies, medications, medical issues, emergency contacts, etc. We then put that information on a master sheet for each person, so if something does happen we have that information handy incase that person can’t speak.
Another good practice is to do a little research of where medical facilities are along your planned route. Is there a “flight for life” in the area? Where are the hospitals, medical clinics, etc?