Bicycle Rear Derailleur Tourney RD-TY21B 6 7 Speed for MTB Mountain Bike Direct Mount Hanger Mount

Description

Model: Bicycle rear derailleur RD-TY21B, suitable for 6 speed and 7 speed SIS index variable speed drives
Direct installation: Before purchasing,please confirm whether the rear derailleur of your bicycle is directly installed or hook mounted.
High-quality material: Made of durable aluminum alloy material, which ensures your safe and stable on the ride, not easily deformed and pretty solid
Wide application: This bicycle transmission is suitable for variable speed bikes, mountain bikes, road bikes, bicycle racing, city bikes, folding bikes, etc.
Professional customer service: If you have any questions about our products or services, please feel free to contact us, we will provide you with our professional service