Feature●MODEL: RD-TY200 bike rear derailleur, Compatible with 6 and 7-speed SIS Index Shifting drivetrains.●MATERIAL: Made of high-quality steel materials, durable and long service life. Easy to install and disassemble.●IMPORTANT: The direct mount rear derailleur for mountain bike, not hub bolt mount (hanger mount).●EXCELLENT PERFORMANCE: Accurate gears provide light and stable shift performance, and making riding easy and comfortable.●NOTE: If you have any questions, please feel free to contact us, we will provide you with professional services.Description