Efendi M, Firdaus R. Maximizing Motorcycle Power and Torque with Roller Modifications. ijins [Internet]. 2024Jun.10 [cited 2024Dec.21];25(3):DOI 10.21070/ijins.v25i3.1159. Available from: https://ijins.umsida.ac.id/index.php/ijins/article/view/1159