The mass of a spinning wheel also has to be accelerated many times during a race and this involves peak power output each time. This is why saving weight for wheels has more positive effect on speed than saving weigh from your frame. The further the weight is from a wheel's hub, the more effect it has on acceleration. The weight of the rim has more impact on acceleration than the weight of the hub.

For wheels to train on I choose by durability. For wheels to race on I spare no expense in getting the most aero as first priority, with light weight as second priority. I ride clinchers for training, and tubulars for race day. Clinchers are more familiar with a separate tube inside and a tire that fits to the rim with a bead that is smaller than the outermost rim diameter. Tubulars have a tube 'sewn-up' inside and must be carefully glued to a rim.

I prefer tubulars on race day for their ability to conform to road surfaces. They have thinner and taller sidewalls so are more able to absorb road shock than clinchers. This is helpful on rough roads, for example on a rough corner a tubular will be better able to keep the rubber in contact with the road surface.

For race wheels the size and speed of the athlete should impact wheel choice.

The taller the rim, the more affected it is by crosswinds. Light riders will have a proportionally tougher time controlling a disc wheel in a crosswind than a heavier rider. Even a deep rim wheel with spokes can be tough to control at times for medium to small riders. The 650c size is significantly easier to handle.

The advantages of aero wheels are proportional to speed. If your average race pace will be 20mph or less, I don't recommend a disc. A disc wheel is typically heavier and will drain energy more than help in the wind. A heavier rider who can develop lots of power will gain more advantage from a disc. The best all-round race wheels for most riders will be a light, deep composite rim wheel with few spokes.