A staple of off-road riding, the CR125 is part of Honda's venerable CR series of motocross motorcycles. The single-cylinder CR125 engine is a two-stroke motor that generates plenty of power for the lightweight aluminum chassis. First released in 1973 as the CR125M Elsinore, these reliable dirt bikes weigh 154 pounds dry and 188 pounds with a full tank of gas. The engine weighs only 46 pounds, including the 28 mm Keihin carburetor. The CR125 received accolades for its sensibly placed controls and effortless ergonomics. The air-cooled CR125 engine generates about 22 horsepower and has a close-ratio six-speed transmission. The 2007 five-speed CR125 boasts a 197-pound dry weight and a two-gallon fuel tank. Its liquid-cooled engine has a compression ratio of 8.6:1, and the 1.5-inch Mikuni TMX carburetor includes a throttle position sensor. Browse the large inventory on eBay for a complete CR125 engine or individual parts such as crankcase covers or a rebuild kit. You can find motors for individual model years, such as a KZ4 2001 CR125 engine.Shop the large inventory of motorcycle parts and motorcycle apparel!