Model: Bicycle rear derailleur RD-TZ31-A,suitable for 6 speed and 7 speed SIS index variable speed drives.
Hanger mount: The installation method is hanger mount(hook holder), NOT direct mount
High-quality material: Made of high-quality steel, sturdy and durable, not easily deformed and not easily damaged.
Wonderful performance: The guide wheel of the rear derailleur is smooth and silent, the shifting is smooth, and the chain will not be damaged, making the riding easy and comfortable.
Wide application: This bicycle transmission is suitable for variable speed bikes, mountain bikes, road bikes, bicycle racing, city bikes, folding bikes, etc.