Supermoto - Machines

Machines

Prior to the 1990s, supermoto bikes, including the precursor motorcycles used in Superbikers, were converted open-class two-stroke motocross or enduro bikes desired for their light weight and jumping abilities. The motorcycles currently used for Supermoto racing are predominantly single-cylinder four-stroke powered dirtbikes with 17-inch (430 mm) or 16.5-inch (420 mm) wheels. The 17-inch (430 mm) wheels allow the use of up to 5.5-inch-wide (140 mm) superbike road racing slick tires. These are often hand-grooved on the rear tire to facilitate slightly better acceleration on the dirt stretches of a supermoto course. Suspension is lowered and slightly stiffened in comparison with a stock dirt bike, and braking power is improved with oversize front brake rotors and calipers. Despite the lack of trees on supermoto courses, 'bark busters' (hand guards) are frequently added to supermoto bikes due the extreme cornering angles achieved by riders. Hand guards also greatly improve survivability of the brake & clutch levers during a fall making supermoto bikes highly crash resistant and often able to quickly re-enter the fray during a race following a crash.

In 1991, Italian manufacturer Gilera released the 'Nordwest' model, the first factory produced supermoto. Other European manufactures quickly followed suit, among them KTM, Husqvarna, Husaberg and CCM; all manufacturers whose emphasis were off-road models at the time. Models were developed for both track and road use. It took another ten years, until the mid 2000s for Japanese manufacturers, such as Yamaha (2004), Honda (2005) and Suzuki (2005) to start introducing supermoto models in the European market. Most of the supermoto bikes sold to the public are more domesticated models for road use rather than outright racing, for example the Suzuki DR-Z400SM.

Slower and heavier but rock solid dual-purpose motorcycles such as the Kawasaki KLR650 are good examples of this. In the spring of 2006, Italian bike manufacturer Ducati announced their entry in the class with the Hypermotard machine, which has more in common with streetfighter-type motorcycles than realistically being considered a true supermoto bike capable of surviving jumps and crashes. KTM currently has available a 999 cc V-twin that could be described as the ultimate road going Hypermoto, and a brand new (and well appreciated) single cylinder KTM690SM. Aprilia also has two 450 cc and 550 cc SXV V-twin track oriented supermotos for sale.

Due to the popularity, versatility, excitement and durability of these motorcycles, some owners modify them for street use. In order to do this, headlights, tail lights, horn, mirrors and street-legal tires among other occasional modifications are needed. Some state motor vehicle departments take a dim view of turning off-road bikes into street legal bikes, such as California which requires a on-road emissions designation from the manufacturer. In Europe most Supermotos are sold street legal from the factory and later tuned for race use. Supermoto type bikes make excellent city-goers as their upright seating position provides great visibility in traffic. Their narrow frames and light weight also make them incredibly maneuverable, as well as easier to ride in twisty or less than ideal road conditions that make most sportbikes have to slow down.