The exhibition showcases the off-road bikes for 2019, with a focus on the heavily redesigned CRF250R motocross bike.
Updated Graphics And Colors For Bike Technology
The new CRF250R has improved engine performance and received the chassis from the flagship CRF450R motocross bike. The latter was first equipped with a three-stage Selectable Torque Control (HSTC traction control). The eligible models like CRF250 rally get new colors and an update of the graphics.
Renewed on the chassis and engine, the CRF250R model features increased low-end and middle-range tractive power and powerful top performance. The revised engine provides 4% more power. For this purpose, the cylinder head, pistons, intake and exhaust ports have been reworked and new cam profiles developed. A tighter gear ratio between 2nd and 3rd gear allows an even better implementation of the performance. Higher combustion efficiency as well as optimized mappings of the ignition electronics contribute to increased engine performance.
HSTC Traction Control Mode
After significant performance improvements in the 2019 model year, the CRF450R became the first motocross bike to receive Selectable Torque Control. The system works together with the revised HRC Launch Control and optimized mappings of the control electronics for PGM-FI injection.
The HSTC traction control, which is adjustable in three stages, maximizes traction by minimizing rear wheel spin. The system does not use a wheel speed sensor but retards the spark timing and reduces the fuel injection quantity when it is determined that the engine speed jumps exceed a defined value. When the engine is switched off, the electronics take over the last setting for the next trip. The HSTC traction control can also be turned off.
The bike models benefit from new rear brake pads that work better in muddy conditions, as well as revised fork and strut damping characteristics that provide benefits in hard braking and low-speed acceleration. New graphics and new decor complete the facelift.
