Horchata, also known as orxata, is a sweet drink popular in Latin America, Spain, and parts of Africa. The drink is rice-based in Latin America, but in Spain and Africa it is made with tiger nuts (chufa). A traditional recipe always calls for cinnamon and water, but beyond that, there are hundreds of variations.
The bigger wheels, however, have been skulking around the scene for decades. In 1999, Wilderness Trail Bikes got the ball rolling in earnest when they produced the first real 29er mountain bike tire. Soon riders began touting the benefits of the bigger wheel size. And those benefits are undeniable. For starters, the big wheels roll over obstacles with greater ease than standard 26-inch wheels.
700C (ISO 622) is the most commonly-used size for modern road bikes. 29 (ISO 622, again) is another popular size for mountain bike wheels and tires. It's actually the same bead-seat diameter as 700c tires, but most 29 tires are simply too wide and tall to fit 700c wheels.