weight and aiding mass centralisation. The rear shock absorber on the 2009 offers variable speed damping, as well as easy-to-tweak screw-adjustable preload. The rear shock absorber connected underneath the swing arm via a linkage, a change from previous models. To improve overall handling and safety, Yamaha included an electronic steering damper. The front had the same classic R1 design cues, though the air intake location and headlamp design were revamped on the 2009 model. This new design used only projector lamps in the headlights and used the newfound design space on the nose to position ram-air intakes next to the lights. Testing the 2010 model on a tri-oval racetrack, Motorcyclist magazine reported a time of 10.02 seconds @ , and fuel consumption of . Motorcycle Consumer News reported a tested top speed of . In 2012, the Yamaha YZF-R1 received traction control and a redesigned nose, and a special edition 50th Anniversary R1 was released. The special edition commemorates the participation of Yamaha in MotoGP, and its colours are inspired by the Assen TT-winning MotoGP bike. Only 2000 units of this edition were made. 2015–present At the centennial EICMA motorcycle show, Yamaha officially unveiled a new generation of R1, similar to the contemporary YZR M1. Yamaha claims a wet weight of . Engine changes include a decreased bore-to-stroke ratio, a larger airbox, a finger-follower valve system, and fracture split titanium conrods. Magnesium wheels are standard, and information is presented to the rider through a user-customizable thin-film display. The new bike has an electronics package that includes a sophisticated Traction Control System (TCS), a Slide Control System (SCS), an anti-wheelie Lift Control System (LIF), linked antilock brakes, a Launch Control System (LCS), a Quick Shift System (QSS), and selectable power modes. The Slide Control System on the R1 is the first on a production motorcycle. Information is fed to the bike through a six-axis inertial measurement unit and other sensors over 100 times a second. Power delivery is tapered through throttle valve manipulation and ignition and fuel cuts. A second higher-spec, limited production model called the R1M is also produced, and is differentiated from the standard model by having more expensive components, such as electronic semi-active Öhlins suspension, carbon fiber bodywork, Yamaha's Communication Control Unit (CCU), a Y-TRAC data logging system, and grippier Bridgestone tires with a larger rear 200/55 size. Starting in 2016, the lower-spec R1S model has also been