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The Yamaha YZ250 is a two-stroke motocross race bike made by Yamaha. The model was launched in 1974, and has been regularly updated and is still in production with new releases every year. The model was launched in 1974, and has been regularly updated and is still in production with new releases every year.
The Yamaha YZ250F is a motocross motorcycle first released in 2001 by Yamaha.It features a DOHC, four-stroke engine and initially had a steel frame and subframe in 2001–2002.
[3] [4] Italian magazine Motociclismo claimed to have achieved 193.24 mph (310.99 km/h) testing the F4 R 312, more or less confirming the claimed speed and tying, if not exceeding, the 1999 Suzuki Hayabusa's tested speeds of 188–194 mph (303–312 km/h), [5] whereas Sport Rider were only able to achieve a 185.4 mph (298.4 km/h) top speed ...
The Yamaha YZ450F is a four-stroke racing motocross bike built by Yamaha Motor Corporation.It was the successor to the previous YZ426F which was discontinued in 2003. It is credited by Cycle World and Dirt Rider magazines as the bike that started the four-stroke dirt bike revolution.
With power typically being the product of force and speed, a motorcycle's power and torque ratings will be highly indicative of its performance. Reported numbers for power and torque may however vary from one source to another due to inconsistencies in how testing equipment is calibrated, the method of using that equipment, the conditions during the test, and particularly the location that ...
Weight 291 lb (132 kg) ( wet ) Having been discontinued in 1991 in favor of the Yamaha XT350 , this model was reintroduced in 2008, replacing the Yamaha XT225 , due to increased popularity of the 250 cc class. [ 4 ]
The YZ125 has been built with five- or six-speed manual sequential gearbox depending on model year. The 2005 model has a constant-mesh, wet, multiple-disc coil-spring clutch. From 1973 through 2004, the YZ125 had a single backbone frame made from steel. It generally averaged from 176 to 198 lb (80 to 90 kg).
The power was transmitted via a chain to the rear wheel via a six-speed gearbox. The chassis consisted of a double-loop tubular frame with a telescopic fork and two spring struts on the rear swing arm. At the front, a worried [clarification needed] Duo-duplex brake on the rear wheel a duplex brake for the delay. With the model TZ 250 C (1975 ...