Rear Derailleur RD-TY21B 6/7 Speed Hanger Mount for Mountain Bike Kids Tricycle Commuter Cruiser Silve

MODEL: Bicycle rear derailleur RD-TY21B, suitable for 6 and 7 speed SIS index variable speed drives, Note: The bike rear derailleur is hanger mount , not direct mount. Please check the mount way before you purchase., 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.It is your indispensable bicycle accessories during your cycling journey., Important: If you have any questions, please feel free to contact us, we will provide you with professional services.