Diamond sent us its Renegade two-piece seat. This company handles seats that are custom designed and hand-built. Each seat is constructed according to the rider's height, weight and inseam, using hand-poured "memory" foam, which owner Mark Hart maintains is critical for long-range comfort. During the ordering process we simply told Hart we were 5-foot-seven and 150 pounds, and he sent us a seat crafted to those dimensions. Our taller tester reported slight crowding in the cockpit, but not to the extent we would have expected. The unit came as two separate pieces, each backed with a fiberglass baseplate. Mounting required that all the original brackets from the stock seat be remounted and repositioned separately on each Diamond. This process took the longest of all the seats tested. Once aligned and mounted up, the Renegade appeared to have the smallest bucket of all, but it's probably the most cupped, too, and resembles an overstuffed pillow. This results in a comfortable ride, but the back of the bucket wasn't very steep and offered only fair back support. This shape was fine around town because it allowed us to get our feet to the ground fast. Luckily the pillion was designed to offer support also, and extended out far enough to prop up the rider's back.