Shimano Tourney RD-TY300, RD-TZ50 Rear Derailleurs

• TX models come with Smart Cage which gives MegaRange compatibility with a shorter derailleur cage
• Rear Derailleur Mount Type: Shimano Rear Direct Mount
• Drivetrain Speeds: 6 , 7
• Cage Length: Long
• Chain Wrap Capacity (teeth): 43 teeth
• Largest Cog: 34
• Color: Black
• Rear Der/Shifter Compatibility: Shimano Mountain
• keyword search: Replaces RD8163