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For harvesting energy, mechanical energy converts to electrical energy using piezoelectric devices. In this study, piezoelectric flexible (PF) was synthesized form composite materials of polyvinylidene difluoride adding 1wt.% of carbon nanotube (PVDF-1wt.%CNT). The PVDF-1wt.%CNT size 0.5×30×100 mm3 and annealed at 60 ℃ for 1h. A copper tape was compressed for electrode on the top and bottom of the PF, poling at 6 kV mm–1 for 20 min. The results show that the piezoelectric coefficient (d33) maximum was 22 pC N–1. The 5 PF modules was fabricated to a device and attachment on a motorcycle coil spring compressor to investigate the generating electricity of the PF from mechanical energy. The motorcycle was tested using velocity at 50 km h–1 for 5 min run-on various surface road. The electricity from the PF modules were arranged using rectifier circuit installed motorcycle coil spring compressor, the output voltage was 3, 3.3, and 4 V for asphalt, cement, and gravel road, respectively. It expected that the harvesting energy devices using piezoelectric flexible is useful to apply on a motorcycle for generated electricity.