The Quadricycle has been around for more than 100 years, becoming temporarily extinct with the coming of the motorcar. Suzuki’s 1983 QuadRunner LT-125 (top left main pic) became the first four-wheeled ATV and revived the industry, offering a platform for sport, recreation and agricultural workers. So it’s a happy 25th birthday from us the modern quadbike (Suzuki's latest Quadsport Z400 pictured). Suzuki - which has regularly set new standards being the first with youth quads, sport quads, independent suspension, differential lock and the first with a race-ready motocross quad - is inviting all Suzuki ATV owners to join in the 25th Anniversary celebrations which will include five regional US-based ATV events.