[不懂就问]想换牙盘，请教各位大佬换多少齿的合适？ [复制链接]

至少 52T，齿比更丰富
42/11 = 3.8
52/13 = 4     提升5%

52/12 = 4.3  提升13%
52/11 = 4.7  提升 23%