Product Description
The Shimano Tourney RD-TY300-SGS rear derailleur is a practical replacement derailleur for 6-speed and 7-speed bikes using a dropout claw hanger style mount. Designed for entry-level mountain, hybrid, and utility bikes, it uses SIS Rear Indexing and Double Servo technology for smooth shifting and accurate tracking across the cassette.

This long cage version is MegaRange compatible and includes a BMX/track frame hanger, making it a useful option for bikes that do not have a standard built-in derailleur hanger.

Key Features

Genuine Shimano Tourney RD-TY300-SGS rear derailleur
Designed for 6-speed and 7-speed drivetrains
Long cage design
Includes BMX / track frame hanger
Dropout claw hanger mount style
SIS Rear Indexing for smooth shifting
Double Servo design helps the guide pulley track cogs closely for accurate shifts
13T upper and lower pulleys
Compatible with HG 6/7/8-speed chains
Black finish
Retail packaged

Specifications

Brand: Shimano
Series: Tourney
Model: RD-TY300-SGS
Product Type: Rear Derailleur
Drivetrain Speeds: 6 / 7-speed
Cage Length: Long
Largest Cog: 34T
Chain Wrap Capacity: 43T
Rear Derailleur Mount Type: Dropout Claw Hanger
Rear Derailleur / Shifter Compatibility: Shimano Mountain
Chain Compatibility: HG 6/7/8-speed chains
Color: Black
Manufacturer Part Number: ERDTY300MB

Compatibility
Compatible with:

Shimano 6-speed and 7-speed drivetrain systems
Bikes using a dropout claw hanger derailleur mount
HG 6/7/8-speed chains
Cassettes or freewheels with up to a 34T largest cog, within drivetrain capacity limits

Please confirm your frame design and derailleur mount style before ordering.

Included

Shimano Tourney RD-TY300-SGS rear derailleur
BMX / track frame hanger

Warranty and Notes

Designed for bikes that use a dropout claw hanger rather than a standard built-in derailleur hanger
Retail packaged
Includes only what is shown or described

Condition

New
Genuine OEM product
Retail packaged
Includes only what is shown or described

Rear Derailleurs