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1998 Yamaha YZF-R1

Scale 1:12
Build Date: 2005

Yamaha launched the YZF-R1 in 1998 after redesigning the Genesis engine to create a more compact engine by raising the gearbox input shaft and allowing the gearbox output shaft to be placed beneath it. This “stacked gearbox” was followed by other manufacturers. Compacting the engine made it much shorter, allowing the wheelbase to be shortened as well and the center of gravity to be optimized. The swingarm could be made longer without compromising the overall wheelbase, which was a short 1,385 mm (54.5 in). Four 40 mm Keihin CV carburetors fed fuel to the engine.

The R1 was also equipped with a 41 mm KYB upside-down front fork and 300 mm semi-floating disc brakes. The instrument panel was electronic, with a self diagnosis system and digital speed readout. The exhaust used Yamaha’s Exhaust Ultimate Power Valve (EXUP) system, which controlled exhaust gas flow to maximize engine power production at all revs, resulting in a high-power and high-torque engine.

Wikipedia contributors, “Yamaha YZF-R1,” Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/w/index.php?title=Yamaha_YZF-R1&oldid=1225143249 (accessed May 22, 2024).

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