I make my own carbohydrate mix if I'm doing a ride where I'm going to be in the upper HR zones a lot. And for organized rides where trying to keep up with peers also puts me in my upper zones a lot. For electrolytes plain table salt is probably more than enough. Or Morton's Lite salt which has both sodium chloride and potassium chloride. However I still will use Hammer Nutrition's, Enduralyte Extreme powder. Less than half of the tiny scoop they put in it for most rides.

But for many short rides of 22 to 30 some miles, I just use water and sometimes nothing for electrolytes. As they aren't going to be a issue for hyponatremia if you aren't guzzling back 4 or 5 bottles of straight water in a short time. And carbohydrates aren't really needed either if you aren't riding in the upper zones for 90 minutes or more.

The learning curve on the tubeless tires for me was that they were the hardest tires I ever tried to mount. I actually had to resort to using a lever instead of being able to get them on with just my fingers. But I think that was partly because, unlike my tubed GP 5000's, I didn't use any baby powder on the tire which lets it slip to the point on the rim where the narrowest over all diameter is. I'm not sure if baby powder/corn starch will affect the sealant. So I'll probably wind up getting a tire jack which essentially just forces the tire to find that part of the rim of least overall diameter. Not to mention that adding sealant to the tire prior to mounting the second bead can be messy if you have to tilt the tire while fussing as you try to get that last part of the bead over the rim and the bead isn't sealed where the sealant is.

Plus, inflating them might be a issue. Even with a air compressor, I couldn't get them to inflate at first. However I figured out if I pushed down at the center of the tire tread all around the tire that it spread the tire beads wide enough to begin to seal. Some use a strap to go around the circumference of the tire to spread the tire beads. Which probably works better and faster.

Some might say you need to change the tape on the rims. Mine where tubeless ready too. But I took a chance and so far so good. Mine were only 5 years old since new and freshly taped. I think yours are probably older. Unless you or someone has changed the tape. Orange seal is the valve stems I wound up using. They are inexpensive and have a assortment of seals for different rim interior designs. Also come with a valve core remover and extra valve cores.

There is other stuff you'll want later. Plugs for your tires just in case you do get a hole that won't seal. And maybe a plug tool that also is a CO2 inflator so you can inflate the tire when you plug it. Saves you from having to also hope your valve core isn't plugged with sealant or even having to attach something else to your wheel. But yes, essentially a valve stem and sealant is all you need.

Oh and tubeless tires. Even though I had great luck with GP 5000's for quite awhile, I decided to go with their new tire. Continental Aero 111. Which only comes in two widths at the moment.