2021 HONDA CBR1000RR-R FIREBLADE SP Photo: Honda Canada

2021 HONDA CBR1000RR-R FIREBLADE SP

Written by  Honda Canada on Wednesday, 06 November 2019 17:13

Leaning heavily on the engine and chassis technology of the RC213V-S ‘street-legal MotoGP machine’, with aerodynamics drawn from the RC213V MotoGP bike, the new Fireblade has been designed from the ground up - in terms of engine, handling and aerodynamics - for outright track performance.

From a clean sheet Honda and HRC’s development engineers set to work creating a new inline four-cylinder engine for the CBR1000RR-R Fireblade SP. It’s a compact, short-stroke layout – sharing the bore and stroke of the RC213V-S – and features a semi-cam gear train, finger-follower rocker arms, titanium connecting rods, RC213V-S internal friction reduction technologies, piston jets with check ball system and a built-in bottom bypass passage for the cylinder water jacket.

A ram-air duct in the front fairing tip feeds through the headstock directly into the airbox. The 4-2-1 exhaust downpipes are ovalized and the muffler has been developed in conjunction with Akrapovic.

Throttle By Wire has been enhanced for improved feel and three default riding modes feature options to change Power, Engine Brake, Wheelie Control and the optimised Honda Selectable Torque Control (HSTC). The electronics package also now includes adjustable Start Mode.

A totally new aluminium diamond frame uses the rear of the engine as the upper shock mount; the swingarm is longer and based on the RC213V-S design. The rigidity balance, weight distribution and steering geometry have been carefully adjusted for the increased engine output, in terms of front and rear grip levels, and feel for both.

A new 43 mm Öhlins NPX front fork replaces the NIX fork of the previous model and second-generation Öhlins Object Based Tuning interface (OBTi) offers finer control of settings front and rear. The front discs are larger in diameter and worked by new Brembo Stylema four-piston calipers while the ABS is adjustable for track riding. The rear tire is now sized 200/55-ZR17.

A six-axis Inertial Measurement Unit (IMU) provides accurate 3D estimation of riding dynamics and provides input to manage all of the electronic systems. It also controls the new rod-type 3-level Honda Electronic Steering Damper (HESD).

Honda’s RC213V MotoGP machine has leant some of its slippery aerodynamics to the CBR1000RR-R Fireblade SP, including winglets to increase downforce and improve braking stability. The riding position is also much more compact.

The fully customisable 5-inch TFT display offers intuitive control operated via a simplified four-way switch on the left handlebar. Honda’s Smart Key system adds convenience.

 

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