Shimano Rd-tz 31 Rear Derailleur 7 speed Hub Bolt Mount

• Model:RD-TZ31-A rear derailleur compatible with 7 speed mountain bikes.
• Note:The bike rear derailleur is direct mount,not hub bolt mount.
• Stability: Durable aluminum alloy material and excellent shifting performance ensure safe and stable riding.
• Application: Suitable for MTB,mountain bikes, road bikes, folding bicycles,tricycles ect.