Honda CBR1000RR SP Fireblade
POWER UP, WEIGHT DOWN
Lighter, more powerful, easier to control. The Honda CBR1000RR SP Fireblade’s 16-valve DOHC engine has received an impressive array of improvements for 2017, resulting in a 10 horsepower increase and contributing to a significant overall weight reduction. Yet even with a 14 percent improvement in power-to-weight ratio (between comparable ABS models), the new SP maintains its user-friendly character, due in large part to its cutting-edge electronics package that’s a key feature of the bike’s Next Stage Total Control design concept. Honda CBR1000RR SP Fireblade
The engine revs harder and higher, thanks to an increase in compression ratio to 13:1 from 12.3:1, revised cam timing and valve lift, and a higher 13,000 rpm rev limit. The pistons feature an optimized wall thickness and a new crown design, while the piston rings have Diamond Like Carbon (DLC) coating that improves sealing. Polished inlet and exhaust ports in the cylinder head and “gas-flowed” combustion chambers improve efficiency, and the intake funnels are “slash cut”, a design used in World Superbike.
A magnesium oil pan and ignition cover, a lighter Assist Slipper Clutch (with a 17 percent easier pull at the lever), lighter but stronger transmission gears, even a careful analysis of the shape and length of bolts, hoses and clamps, all contribute to an engine that’s 2 kg (4.4 lbs) lighter for 2017.
LIGHTWEIGHT TITANIUM MUFFLER
The new titanium irregular-cross-section muffler shaves a full 2.8 kg (6.2 lbs) from the CBR’s overall weight, while also creating an unmistakable sound at open throttle. The exhaust supplier to the Repsol Honda MotoGP team was asked to develop the prototype and produced an exquisite design with the 4-2-1 double-layer downpipes incorporating the exhaust valve within the first main pipe.
The CBR1000RR SP’s new cutting-edge electronic control system allows you to tailor the bike’s performance exactly the way you like it. Central to the system is the 5-axis Inertial Measurement Unit (IMU) gyro, which precisely measures what the machine is doing, in every plane. It works with the fuel-injection ECU, the new Throttle By Wire system – the first on an inline-four Honda – and even the ABS system to provide unparalleled ride control right at your fingertips.
CHOOSE YOUR RIDING MODE
Riding full-out on the track on Saturday, then taking a leisurely spin on your favourite twisty road on Sunday? The Riding Mode Select System makes it easy to program the CBR’s electronic controls for various types of riding situations. Accessed via the instrument panel and switches beside the left handgrip, RMSS lets you choose – on the fly – between five different combinations of electronic control: three modes offer preset combinations of engine power level, rear-wheel traction and wheelie control, and engine braking strength, while two additional user settings allow you to customize combinations to your exact preferences.
FULL RIDER CONTROL
Here’s what the Riding Mode Select System allows you to control. Power Selector (5 levels), which regulates engine power from peak output in all six gears at Level 1 to gentler power increase at Level 5 (all levels have the same throttle response on initial opening). Honda Selectable Torque Control (9 levels and off), which manages rear-wheel traction and front-wheel lift under acceleration. Selectable Engine Brake Control (3 levels), which regulates the amount of engine-braking force when you roll off the throttle.
SHIFT WITHOUT THE CLUTCH
Working in conjunction with the Throttle By Wire, fuel-injection and ignition systems, the SP’s quickshifter and Downshift Assist let you smoothly and quickly upshift or downshift without using the clutch. It even momentarily blips the throttle on downshifts, and you can select from three modes or off.
LARGER EFI THROTTLE BODIES
The CBR’s Dual-Stage Fuel Injection system features two sets of injectors per cylinder for instantaneous high-rpm response, great low-rpm fuel metering, and clean running. Refined EFI settings and larger throttle bodies (48 mm vs 46 mm) make the engine even more manageable, with smoother throttle response particularly at smaller throttle openings.
Fully adjustable, semi-active, and track ready, the new Öhlins Smart EC suspension system is a huge upgrade from what you’d normally find on a streetbike. Here’s how it works: The Suspension Control Unit receives roll rate, yaw rate and lean angle information from the Inertial Measurement Unit (IMU) gyro, while also gathering wheel speed, engine rpm, brake input and throttle angle from other sensors. Using the Riding Mode Select System, you can choose from three automatic modes that calculate the ideal front and rear compression and rebound damping settings based on the input data, or use the three manual modes to set damping rates yourself to perfectly suit the conditions and your riding style.
The CBR1000RR SP’s new gyro-assisted ABS takes anti-lock braking technology to an even higher level. Using lean-angle data from the IMU and both front- and rear-wheel speed sensors, the system allows hard trail braking into corners and limits rear-wheel lift – preventing the rear of the machine from elevating or “backing in” around the front. Brembo four-piston monobloc radial-mount front brake calipers use newly developed brake pads with a high coefficient of friction that perform better at the elevated temperatures created during aggressive riding.
Even better handling
The hollow die-cast twin-spar aluminum frame’s rigidity balance has been significantly adjusted to give even sweeter handling with outstanding steering response, feel and stability. And it’s even lighter than ever – by about 800 grams – thanks to a thinning of the frame walls in particular sections. Same thing with the Unit Pro-Link swingarm, which has had the thickness of each section adjusted to save approximately 100 grams while maintaining transverse rigidity and increasing torsional rigidity.
Titanium fuel tank
Positioned high, the weight of the fuel tank (and fuel) plays a significant part in a motorcycle’s handling. In another first for mass production, Honda has developed a compact 16-litre titanium fuel tank for the CBR1000RR SP. Manufactured by an ultra-deep drawing process, it’s 1.3 kg (2.86 lbs) lighter than an equivalent steel tank and contributes to improved concentration of mass and a reduction in the moment of inertia. As well, knee-grip area has been narrowed by 30 mm for improved aerodynamics and rider comfort and control.
Most steering dampers only sense handlebar-deflection speed. The Honda Electronic Steering Damper (HESD) is way more sophisticated. It also detects vehicle speed, and adjusts damping proportionally. This helps maintain low-speed maneuverability while providing predictable high-speed handling.
New Y-shape aluminum wheels have five spokes instead of six for improved aerodynamic stability, while thickness has been reduced to cut weight by approximately 100 grams.
Like the exotic RC213V-S, the CBR1000RR SP uses a full-colour TFT liquid-crystal instrument panel that automatically adjusts to ambient light. It includes a speedometer, tachometer and odometers, plus indicators for gear position, shift-up point (rider adjustable), fuel economy, distance to empty, and more. And by choosing one of three modes – Street, Circuit or Mechanic – the panel also reveals a wealth of additional data. Street shows you the Riding Mode you’re in plus the settings for each parameter: P (Power Selector), T (Honda Selectable Torque Control), EB (Selectable Engine Brake) and S (Suspension). Circuit adds to these the lap time, number of laps, and difference from the best lap. Mechanic displays such info as grip angle, coolant temperature and battery voltage. Honda CBR1000RR SP Fireblade
The CBR’s sleek, lightweight new bodywork wraps around the chassis and engine tightly, adding to the bike’s compact proportions and aerodynamic efficiency. The upper fairing has been narrowed by 24 mm, and the surface angle of the headlights and the contouring of the side slits support stability at speed. In a racing crouch the rider is tucked well out of the airstream, and in normal riding situations air pressure is evenly distributed on the rider’s shoulders, back and sides. Honda CBR1000RR SP Fireblade
Bright LED lighting
All lighting is crisp LED, with the twin front headlights offering high/low beam on both sides. The new headlights also save a full half-kilogram of high-mounted weight, further improving the Honda CBR1000RR SP Fireblade’s mass centralization.
Lightweight lithium-ion battery
The lithium-ion battery is half the weight of the previous lead-acid battery. Service life is even better, and the central mounting location helps to improve mass centralization.
Honda CBR1000RR SP Fireblade