Shimano Tiagra RD-R4000 Rear Derailleur - 11-Speed Shadow RD Design Top Normal Direct Attach Long Cage

Smooth, Silent, and Built to Perform

The Shimano RD-R4000 11-speed rear derailleur is engineered for 2x11-speed road setups, delivering crisp, reliable, and smooth shifting across a wide range of terrain. Combining a lightweight, compact design with rock-solid reliability, this derailleur offers an elevated road riding experience whether you are tackling steep climbs or pacing on long endurance efforts.

Featuring Shimano's low-profile Shadow RD technology and single-tension construction, the RD-R4000 prevents the derailleur from hitting the chainstay during rough riding conditions for a whisper-quiet performance. With its expanded gear capacity and long cage design, it easily accommodates wider cassettes so you always have the perfect cadence for any gradient.

The Best Bits

• Shadow RD Low Profile: Ultra-low profile design with single-tension construction prevents chainstay contact, delivering silent, smooth performance even on rough roads
• Precision 2x11 Shifting: Built for 2x11 road drivetrains to deliver quick, crisp, and effortless gear changes when you need them most
• Expanded Gear Range: Supports larger rear sprockets up to a 36T cog, giving you the bail-out gears required for steep climbs
• Versatile Chain Compatibility: Plays perfectly with both LINKGLIDE and standard HG 11-speed chains for setup flexibility
• Lightweight & Refined: Compact, durable construction sheds weight while maintaining high reliability season after season

Technical Specifications

• Model: RD-R4000
• Drivetrain Speeds: 11-Speed (2x11 setups)
• Cage Length: Long
• Largest Cog: 36T
• Chain Wrap Capacity: 41T
• Shifter/Derailleur Compatibility: Shimano Road
• Mount Type: Direct Mount
• Chain Compatibility: LINKGLIDE and HG 11-Speed
• Cassette Compatibility: CS-RS400 11-speed (sold separately)
• Color: Black