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 2×11-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 2×11 Shifting:
Built for 2×11 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 (2×11 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