United Motors, a privately held company with offices in Florida, imported and rebadged Chinese and South Korean motorcycles and scooters; some were made by Jincheng and Hyosung, but not all. United Motors’ American operations went out of business in 2010, though the company continued to distribute Korean and Chinese motorcycles in South America. The 2007 DTF line of off-road bikes was introduced to the U.S. market in 2006 and carried over in 2007.
All five models have air-cooled, single-cylinder four-stroke engines with an overhead valve configuration. The model numbers indicate the engine displacement: the DTF 50 has a 49cc engine; the DTF 90 has an 86cc engine; the DTF 110 engine displaces has a 107cc engine; the DTF 150 displaces 149ccs, and the DTF 200 displaces 196.4ccs. All models have carburetors and electric starters backed up with kick starters. The DTF 50, the smallest and lightest of the line, is geared for young riders; its seat height is just 22 inches, and it weighs just 119 pounds. Its front suspension is an inverted fork, and it has a four-speed manual transmission. All other models have five-speed manual transmissions; all models have chain final drive. The DTF 90, 110, 150, and 200 have telescopic forks in front; all models have a twin-sided swing arm in the rear. All models have disc brakes in front; the smaller and lighter DTF 50, 90, and 110 have drum brakes in back. The DTF 150 and 200 both have disc brakes in the rear.
Dealer support, of course, is nonexistent, but because United Motors operated in the United States for 15 years and sold thousands of bikes and scooters, parts are available. The company’s bank-owned American assets were purchased by MRP, which has made owner’s manuals available online.