Scooter Tire Pressure Influence on a Hard Braking Manoeuvre

Abstract The mortality of road accidents quadruples when, in addition to motorists, a motorcyclist is also involved. higher influenced by the greater exposure rider injuries during impact. This problem can be mitigated reducing, even slightly, impact’s speed. Bench tests carried out previous studies showed considerable influence inflation pressure on properties motorcycle tires. It could therefore have significant effects deceleration achievable under braking. study aimed evaluate effect inadequate tire (excessive or insufficient) average hard braking manoeuvre performed only with rear wheel and ABS intervention. Experimental were Piaggio Beverly S 300 controlled environment closed traffic. Different pressures tested multiple runs. data acquired through smartphone used as an IMU. At nominal 2.4 bar measured was 3.69 m/s 2 (SD = 0.12 ). When increasing 3.0 decreasing it 1.8 reduced respectively 3.67 (-0.8%, SD 0.10 ) 3.59 (-3.0%, 0.16 reduction partly load transfer tire, which partially compensated for force coefficient. results that moderate variation modestly influences deceleration.