Product Details
Shimano ST-R4020 Tiagra mechanical shift hydraulic STI lever
Experience precise shifting and confident braking with the Shimano Tiagra ST-R4020 left-hand hydraulic disc brake and shift lever. Its slim, ergonomic design fits naturally in your hand, while the short shift arc allows rapid and accurate 2-speed gear changes with minimal effort. The hydraulic brake lever delivers powerful, controllable stopping performance, especially from the hood position, and the auto-adjusting reservoir maintains consistent pad-to-rotor clearance as pads wear. With tuneable reach adjusters and an easy-to-bleed hydraulic system using Shimano mineral oil, this lever provides reliable performance and smooth operation. Compatible with 11-speed chains and RD-R4000 or RD-U6040 rear derailleurs, it’s a smart upgrade for riders seeking efficiency, comfort, and dependable braking.
Features
- Product Type: Gear Lever
- Product Type: Road & Drop Bar
- Discipline: Road
- Di2: No
- Shift Mechanism: Mechanical
Specifications
- Discipline Compatibility
- Road
- Shifting Type
- Mechanical
- Brake Compatibility
- Hydraulic Disc
- Brake Integration
- Integrated
- Family
- Tiagra
- Gender
- Unisex
- Intended Use
- Endurance
- Shifters [Maker]
- Shimano
- Shifters [Model]
- Tiagra
- Speed Compatibility
- 11-speed
- Product code
- 2013717 / 54293266170202
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Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
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About Shimano
Shifting the way the world rides.
From a single Osaka workshop in 1921, Shimano has grown into the world's most influential component maker. The brand's relentless engineering — Dura-Ace, Ultegra, GRX, XTR — has shaped the way the world shifts, brakes and rides, on the road and off it.
Shimano's flagship groupset, Dura-Ace, has been the benchmark for top-level road components for more than five decades. Every refinement that lands on Dura-Ace eventually shapes the entire Shimano range, all the way down to entry-level drivetrains.