A. H. Ariffin, A. Hamzah, M. S. Solah, N. F. Paiman, Z. Mohd Jawi and M. H. Md Isa
Abstract: This study was conducted to assess motorcycle braking performance in simulated emergency situation. Braking distances and G- force values (peak) during the braking test of 6 distinct underbone motorcycles of 100-150cc were measured and compared based on different test conditions namely type of brake system (disc and drum), method of braking operation (front and rear brakes) and test load (rider only and rider with pillion). The results indicate that type of braking system and method of braking operation significantly influenced braking distance and G-force value. However, test load was found insignificant. The shortest braking distance and highest deceleration rate were 12.48 meters and 8.52 m/s2, respectively. The lowest G-force value (peak) was recorded 0.39 throughout the test. It is to be noted that this study is unique on its own due to certain limitations although some of the methods were adopted from the established international braking test standards. Even though this study is considered fundamental, the findings could provide vital information on the braking performance of underbone motorcycles especially to the motorcycle manufacturers and OEMs, as well as to the relevant authorities (driving institutes and Road Transport Department).
Keywords:Braking performance, braking distance, underbone motorcycles, low engine capacity motorcycles
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