Internal Shifting Speed nsmission Hub Flywheel for Shimano Bicycle 14 16 18 19 20 21 22 Tooth Flywheel

The flywheel plate used for shimano Automatic nsmiion hub, 14 teethis specially used for internal three-speed, others are generally used forshimanointernal three speed to internal eight speed.Note: Shimano flywheels are not marked with Shimano mark. The difference between true and false flywheels is that the teeth of flywheels are rough. The teeth of flywheels are ed smooth and feeood. It is common for thitoothed flywheels to support single speed chains, while the thin ones support single speed and external variable speed chains. For example, Panasonic mopeds need to use thin teeth to speed up and change the 16 tooth flywheel, and mountain bikes need to use thin plates to change the internal nsmiion.You don't need to change the chain, or you can't determine whether your chain is wide or narrow.