Shimano Tiagra R4000 2×11 Road Hydraulic Groupset (New)

The Shimano Tiagra R4000 2×11 Hydraulic Groupset is Shimano’s newest mechanical road groupset, introduced in 2026. It replaces the long-running Tiagra 4700 2×10 and brings Tiagra up to 11 speeds, with ergonomics and performance inspired by 105 while remaining fully mechanical.

Typical groupset contents

• Dual Control hydraulic STI levers (2×11)
• Hydraulic disc brake calipers (flat mount)
• Front derailleur
• Rear derailleur
• Crankset (50/34T or 52/36T)
• 11-speed cassette (y 11–36T)
• 11-speed chain
• Hydraulic hoses and small parts (depending on the package)

Key features

• 2×11-speed mechanical shifting
• Hydraulic disc brakes only (no rim brake version)
• Improved hood ergonomics similar to Shimano 105
• Around 200 g lighter than the previous Tiagra 4700 groupset
• Wider cassette range with an 11–36T option for easier climbing