The wheelset pictured below is particularly strong to meet the needs of a particular rider. It uses Velocity Cliffhanger rims and White Industries MI6 hubs. The 26″ wheel size and wider 135mm rear spacing offer relevant benefits.
Spokes are a key consideration with every build. In this case I’ve chosen 40 spokes per wheel and I’m using single-butted Sapim Strong, which are 2.3mm at the elbow where most breakage occurs. The strength of a spoke is proportional to its cross-sectional area so a 2.3mm section is stronger than you might imagine. Put in other terms, 40 spokes with a 2.3mm diameter offer more strength than 52 spokes with a plain 2.0mm end. Sapim Strong are 32% stronger says (π×(2.3÷2)²) ÷ (π×(2.0÷2)²).
It’s not common practice but I chose nipple washers for this build, which allow me to take tension to the limit of the rim with greater safety. Sapim Polyax washers also allow nipples to re-orient slightly for a better spoke path — I like them when building with single-butted spokes.