This Shimano Tourney RD-TZ50 rear derailleur is ideal replacement for 6/7 speed gear systems that use a fixed hanger system (see image).

 

• Shimano TZ50 with fixed, non removable hanger
• SIS rear index shifting
  
• Max rear sprocket: 28t
  
• Min rear sprocket: 14t
  
• 11 tooth pulleys offer long service life and low noise
  
• Speed: 6 or 7 speed
  
• Works with all types of rapid fire shifter or grip shifter
  
• Weight: 241g