BMW S1000RR DREAM SUPERBIKE | Looking back at 3 versions(2009-2022)
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- เผยแพร่เมื่อ 26 ส.ค. 2024
- BMW S1000RR is a race oriented sport bike initially made by BMW Motorrad to compete in the 2009 Superbike World Championship,that is now in commercial production. It was introduced in Munich in April 2008,and is powered by a 999 cc (61.0 cu in) four-cylinder engine redlined at 14,200 rpm.
BMW made 1,000 S1000RRs in 2009 to satisfy World Superbike homologation requirements, but expanded production for commercial sale of the bike in 2010. It has a standard anti-lock braking system, with an optional electronic traction control. As of 2016, it has a wet weight of 204 kg (450 lb), and produces 148.4 kW (199.0 hp; 201.8 PS) at 13,500 rpm.With 133.6 kW (179.2 hp; 181.6 PS) to the rear wheel, it was the most powerful motorcycle in the class on the dyno.
The S1000RR received a full model change for 2019 at the November 2018 EICMA, Milan, Italy. The 999 cc (61.0 cu in) four-cylinder engine is entirely new, which is claimed to produce 152 kW (204 hp; 207 PS) at 13,500 rpm (up 4.5 kW (6.0 hp; 6.1 PS) from the previous iteration) and 113 N⋅m (83 lbf⋅ft) of torque at 11,000 rpm. This new engine employs BMW ShiftCam technology on the intake side, which varies intake valve timing and lift. The system has sliding concentric outer shafts, with two different cam profiles on them, on a splined inner shaft with the drive on one end. An ECU-controlled motor switches between low- and high-speed cams at 9,000 rpm in under 10 milliseconds, which produce soft, low-lift, short-duration cams for low-down and midrange torque, then a more aggressive profile cams for peak power production. The outer shafts are moved by a movable pin engaging in a cammed slot on the shaft, which slides the outer camshaft section left and right as needed. BMW claims the addition of this system gives the S1000RR a more linear torque curve than its predecessor.