SHIMANO announces the new TIAGRA R4000, a refreshed 2×11-speed mechanical road groupset (it works great on grave, see this Trek All Road as an example) created to deliver confident shifting, practical gearing, and a more accessible fit for a wider range of road riders. With a focus on real-world usability, from lever reach and comfort to drivetrain compatibility, TIAGRA R4000 delivers modernized road performance at an attainable price.
At the heart of the system is an updated shifter with an ergonomic lever design for easier reach across a wider range of hand sizes. This is paired with a new lightweight 11–36T HYPERGLIDE 11-speed cassette option for the new 2×11-speed system. The 11–36T cassette delivers a broad range for mixed terrain and climbing, while helping reduce system weight, more than 200 grams lighter than reference configurations, supporting riders who want a lighter road setup without sacrificing gear range.
Shimano Tiagra R4000 Key Features
- Ergonomic lever design with easy reach to support more hand sizes and riding positions.
- New 11–36T 11-speed cassette option for wider-range gearing on a 2×11 road system.
- Lightweight: the new 11–36T cassette option is significantly lighter than reference configurations.
- New TIAGRA rear derailleur (RD-R4000) designed for 2×11 operation.
- Supporting traditional road bikes with a small q-factor, short chainstay length, and bigger chainrings available.
Shimano Tiagra R4000 Lineup
Rear Derailleur: RD-R4000
The SHIMANO TIAGRA rear derailleur is designed for 2×11-speed road bikes, delivering smooth, precise shifts. Its compact, refined design combines lightweight construction with reliability for an exceptional road-riding experience.
Front Derailleur: FD-R4000
With lighter front shifting and smooth, natural shift action, the SHIMANO TIAGRA 11-speed front derailleur is an ideal choice for the road cyclist. With SHIMANO’s toggle link construction and an optimized cage design, it delivers the on-demand shift performance modern road riders demand.
Crankset: FC-R4000 (52–36T and 50–34T options)
The new SHIMANO TIAGRA FC-R4000 crank embodies the DNA of SHIMANO’s high-end road designs, delivering an ideal balance of weight and efficiency. Purpose-built for road cycling, it is available in two chainring options, 52-36T and 50-34T, and in crank arm lengths of 165, 170, 172.5, and 175mm.
Dual Control Levers / Shifters: ST-R4020-L (left), ST-R4020-R (right)
Refined lever design enhances road performance. The SHIMANO TIAGRA 2x11s DUAL CONTROL LEVER incorporates advanced ergonomics from the acclaimed SHIMANO 105 series. Its redesigned lever position and bracket, developed through research on various hand shapes, ensure superior comfort and control for road cyclists. Featuring a premium feel, reliable hydraulic disc brake power, and smooth shifting, the TIAGRA 2×11-speed system offers precision and confidence on the road.
Cassette: CS-RS400-11 (11–36T)
The 11-36T 11-speed cassette offers a 327% gear range. Whether sprinting on the flats or tackling steep climbs, you can choose the ideal gear ratio for a wide range of situations.
Chain: CN-HG601-11 (existing model; not new)
This Super Narrow HG-X11 directional chain offers precise shifting and improved durability thanks to SHIMANO’s SIL-TEC treatment on the inner plate surfaces.
Pricing
Learn more at the Shimano Website