October 17, 2006 Yamaha’s all new 2007 YZF-R1 Supersport machine hits showrooms in a few weeks time and the new bike is bristling with innovative technology, including the world’s first variable air funnel intake on a motorcycle. The YCC-I (Yamaha Chip Controlled Intake) electronically varies intake length to maximise combustion efficiency at all rev levels and so produce a more linear power curve. The new R1 also sports ‘fly-by-wire’ throttle first used on Valentino Rossi’s world championship winning YZR-M1 race bike. The YCC-T system (Yamaha Chip Controlled Throttle) senses a rider’s accelerator operation and an ECU instantly calculates the optimal throttle opening to provide instant response and smooth power in every situation. These high tech features combine with a strong four-valve engine to produce an astonishing 189 bhp (139 kw) @ 12,500rpm with ram air effect. Power is transmitted to the tarmac via a race-style slipper clutch and once the power gets there, a pair of six piston radially mounted front brake calipers ensure the rider is always in control. A fifth generation ‘controlled flex’ aluminium chassis and swingarm further improves stability and handling, while futuristic styling incorporating advanced air management reduces air resistance while boosting intake for maximum performance.
Read the full article: Yamaha’s all-new 189 bhp, US$11,600 YZF-R1 Supersport