Surly is an American bike brand that was founded in Minnesota in 1998 by the bike enthusiast and frame builder, Dave Gray. The company was initially focused on producing steel touring and mountain bike frames with a unique and unconventional design. In 2001, Surly introduced the Pugsley, the first mass-produced fat bike, which quickly gained a cult following among adventurous cyclists. Surly continued to innovate and expand its product line with models such as the Long Haul Trucker, the Krampus, and the Ice Cream Truck. Today, Surly remains a popular brand among bikepackers, adventurers, and commuters who appreciate the brand's high-quality and unconventional approach to bike design.