Among Shimano 12-speed sprockets, I used 15t and 16t as the main gear ratio. If I could just replace these two parts, I wouldn't have to buy a new sprocket and could ride for longer. However, I was surprised to hear that they don't sell individual sprockets from 12-speed onwards.
I hesitantly tried buying single sprockets from AliExpress, and they were perfectly compatible.
It seems like a reasonable consumer lifestyle, so I'm sharing it.
Let's have a safe and enjoyable ride in the 2026 season.
Don't speed while riding, and slow down when you see children. Let's protect children... (They are precious beings who will secure our pensions in the future. ^^)
