SHIMANO Tourney RD-TY300 Bicycle Derailleurs

The Shimano Tourney RD-TY300-SGS is a versatile and dependable rear derailleur designed for entry-level mountain bikes, trekking cycles, and urban commuters. Available in both Direct Mount and Dropout Claw Hanger versions, this long cage derailleur integrates proven Shimano technologies to ensure smooth gear transitions and consistent performance. Whether you are restoring an older bicycle or maintaining a daily commuter, the TY300-SGS offers a high-quality, cost-effective solution for 6 and 7-speed drivetrains.

Advanced Shifting and Tracking Technology

• SIS Rear Index Shifting System provides a predictable and smooth action for every gear change.

• Double Servo technology allows the guide pulley to track the cogs closely throughout the entire range.

• Optimized movement from front to back ensures the pulley stays at the perfect distance from each sprocket.

• Delivers more accurate indexing and reduced chain noise during high-torque pedaling.

Durable Design and Component Compatibility

• Long cage (SGS) construction supports a wide gear range for better climbing capabilities.

• Equipped with 13-tooth upper and lower pulleys for reduced friction and improved chain wrap.

• Fully compatible with standard HG 6, 7, and 8-speed bicycle chains.

• Robust black finish provides a professional look and protects against environmental wear.

Mounting Options and Versatility

• Available in a Direct Mount version for frames with a dedicated derailleur hanger.

• Available in a Dropout Claw Hanger version for frames without a built-in mounting point.

• The hanger-integrated model includes the necessary frame hardware for a secure installation.

• Simple adjustment screws allow for easy limit setting and cable tension indexing.

Technical Specifications

• Model: RD-TY300-SGS.

• Series: Shimano Tourney.

• Speed Compatibility: 6 and 7 Speed.

• Cage Length: Long Cage (SGS).

• Pulley Size: 13T.

• Chain Compatibility: HG 6/7/8-speed.

• Mounting Types: Direct Mount or Dropout Claw Hanger.