2017 Honda CBR1000RR Fireblade and SP – Video
The SP is the first inline four-cylinder engine from Honda to use Throttle by Wire control and is driven by an Acceleration Position Sensor integrated into the right handlebar switchgear.
There are now three rider modes. Mode 1 gives full power, with linear throttle response, low HSTC and EB intervention and high damping force. Mode 2 controls output through first to third gear, with fairly moderate power increase, medium HSTC, strong EB and medium damping force. Mode 3 controls output through first to fourth gear, with moderate power increase, high HSTC, strong EB and low damping force. In USER mode all parameters can be combined and adjusted independently.
A quickshifter is fitted as standard for clutchless upshifts and there’s also Downshift Assist – and auto-blipper – for clutchless downshifts.
Honda’s engineers have ripped the engine apart and hunted for every possible gain. The result is an additional 11bhp, the loss of 2kg and raised rev ceiling of 13,000rpm.
Peak power is now a claimed 189bhp @ 12,500rpm, with peak torque of 81.79ftlb @ 10,500rpm. Bore and stroke remain 76 x 55.1mm but the compression ratio is up from 12.3:1 to 13:1.