85 to 89 grams. Thunder badminton racket is a carbon badminton racket, and its listing time is 202 1. Thunder 80 is Li Ning's first "asymmetric design" racket. The overall color is mainly dark, which is more in line with Chen Long's calm style and personality. By adding bright colors to the racket frame and the middle pole, the light and shade blend, which also highlights the sudden change of Chen Long's ball path in this competition. Li Ning's new generation of carbon materials, combined with superconducting nano-materials, enhance the elasticity of racket, gain multiple elastic potential energy when attacking, and enhance the offensive potential energy. The weight of a 3u racket is 85 to 89 grams.