Penton was a brand of off-road use motorcycle introduced in 1968 by John Penton, a noted enduro rider on the dirt bike competition circuit. Penton approached the KTM company, who at the time built bicycles and mopeds, to build a light-weight off-road motorcycle. The first Penton motorcycles were modified small bore motorcycles with a Sachs engine with improved suspension and details. The early motorcycles made their mark in International Six Days Trials (now called the International Six Days Enduro) competitions with riders such as future Motorcycle Hall of Fame members Billy Uhl and Carl Cranke. The most popular size was the 125cc (Six Day), but they were also made in 100cc (also Berkshire) and later, in 175cc (Jackpiner, in 1972), 250cc (Hare Scrambler, in 1973), and 400cc (Mint, in 1974). Later models utilized KTM engines, gas forks, lay down shocks, fiberglass gas tanks, plastic fenders and frames of high grade chrome-moly steel. Other, less-common models included the Mudlark observed trials motorcycle (made by Wassell in England), the Cafe MX (a dual purpose version of the Mudlark), the Hiro 125 (the Six Day with an Italian motor), the Woodsman (an enduro version of the Mudlark) and the K-R (Kenny Roberts)shorttrack racer. Production, development and distribution was taken over completely by KTM Austria in 1978. The Motorcycle Hall of Fame Museum is an offshoot of the American Motorcyclist Association that recognizes individuals who have contributed to motorcycle sport, motorcycle constru tion and motorcycling in general. It displays motorcycles and riding gear and memoribilia. The museum is located in Pickerington, a suburb of Columbus, Ohio, United States. The International Six Days Enduro (ISDE), formerly known as the International Six Days Trial (ISDT), is the oldest 'off road' motorcycle event on the FIM Calendar. The ISDT was first held in 1913 at Carlisle, England. It has occurred annually, apart from interruptions due to World War I and World War II, at various locations throughout the world. The early events were a true test of machine, rider skill, and reliability. Held on the 'roads' of that era, today most of the routes are truly 'off road'. Originally titled the International Six Day Trial, in 1981 the FIM decided to update the name to International Six Days Enduro, the name Enduro having been devised by the Americans and popularised by many motorcycle manufacturers also greater reflected the change in the event from a trial to more akin to a rally featuring skills more associated with cross country motocross. The sport has been associated with many great motorcyclists before its 100th anniversary in 2013; this also includes women such as 1920s-30s star Marjorie Cottle. Up until 1973 the contest was always held in Europe. In 1973 it travelled for its first overseas jaunt, the United States. Since then it has been outside Europe more frequently: twice in Australia (1992 and 1998), once more in the USA (1994), Brazil (2003), New Zealand in 2006, Chile in 2007 and Mexico in 2010.