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Rear derailleurs
Shimano Tourney RD-TY300-SGS rear derailleur
Tourney RD-TY300-SGS rear derailleur
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
Retailer offers
Where to Buy
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Technical data
Specifications
- Speeds
- 7-speed
- Supported speeds
- 6-speed, 7-speed
- Maximum cassette cog
- 34T
- Drivetrain family
- L-TWOO/Shimano 7-speed mechanical
- Compatible chain families
- Generic 6/7/8-speed
- Shift actuation
- Mechanical
- Frame mounting
- Conventional hanger
- Total capacity
- 43T
Catalog trust
Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Sep 14, 2026
- Compatibility review
- Reviewed Sep 14, 2026
Approved technical sources
- Installed exact identity for Tourney RD-TY300-SGS rear derailleur
- bike.shimano.com/en-NA/products/components/pdp.P-RD-TY300-SGS.htmlManufacturerSource checked Sep 14, 2026Evidence reviewed Sep 14, 2026
- walmart.com/ip/16828507847RetailerSource checked Sep 14, 2026Evidence reviewed Sep 14, 2026