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Shimano Tourney RD-TY300-SGS Rear Derailleur - 67 Speed Long Cage Black Dropout Claw Hanger. Shimano Tourney RD-TY300 RD-TZ50 Rear DerailleursTX models come with Smart Cage which gives MegaRange compatibility with a shorter derailleur cage
- TECH SPECS
| Largest Cog | 34 |
| Color | Black |
| Rear Der/Shifter Compatibility | Shimano Mountain |
| Rear Derailleur Mount Type | Dropout Claw Hanger |
| Drivetrain Speeds | 6 |
| Drivetrain Speeds | 7 |
| Chain Wrap Capacity (teeth) | 43 |
| Cage Length | Long |