The Ruby TriSpoke Wheel was designed to solve the problem most triathletes face: wanting a fast wheel with a minimal amount of side force. Our original Ruby was fast but the most common complaint was the increased side force. Likewise, our 88mm deep Beryl is extremely fast but that speed also comes at a side cost of side force. Enter the latest Ruby that improves upon the aerodynamics of the 88mm deep Beryl with a lower side force. You get a faster wheel that is easier to handle in a crosswind. Win-Win!