Tourney RD-TY300

The Shimano Tourney RD‑TY300 is a dependable 6/7‑speed rear derailleur built for smooth, consistent shifting on recreational bikes, hybrids, and everyday riders. Its wide 43T capacity, top‑normal spring design, and compatibility with cassettes up to 34T make it a reliable replacement option for a broad range of entry‑level drivetrains. Available in three mount‑type versions to match different dropout styles.

• Compatible with 6/7‑speed drivetrains

• Top‑normal spring design for predictable shifting

• Maximum large cog: 34T

• Minimum small cog: 11T

• Total capacity: 43T

• Maximum front difference: 20T

• SGS long cage for wide‑range gearing

• Available in three mount types: Adapter, Direct Mount, BMX/Track Adapter

• Durable black finish