The Shimano Tiagra ST-4720 brings the all-condition confidence of hydraulic disc braking to the quick, intuitive feel of STI dual control shifting. Designed for 2x10-speed road and cyclocross drivetrains, it pairs servo-wave hydraulic lever action with ergonomic ergonomics that fit a wide range of hand sizes — making it the smart upgrade choice for riders stepping into disc-brake road cycling.

Highlights

• Hydraulic disc brake integration: Servo-wave brake lever design delivers powerful, modulated stopping with Shimano Mineral Oil — no brake cables to stretch or corrode.
• Reach adjust mechanism: Tool-adjustable lever reach lets you dial in the ideal distance from handlebar to lever blade, accommodating different hand sizes and riding styles.
• 10-speed STI shifting: Proven Shimano dual-control shift action keeps your fingers on the levers and your mind on the road — shift up or down without moving your hands.
• Pre-assembled hose and cable: Arrives with shifting cable and hydraulic hose kit pre-fitted, minimising installation time and setup complexity.
• Ergonomic lever body: Resin and steel construction shaped to match Shimano's road handlebar ergonomics, with a comfortable hood profile for long days in the saddle.
• Straight hose joint and funnel bleeding: Simplifies installation and future brake maintenance with a straight banjo-style joint and funnel-compatible bleed port.

Road-Ready Hydraulic Performance

Shimano's Servo-Wave technology reduces initial lever travel before braking force ramps up sharply, giving you a firm, predictable feel at the lever. Combined with Shimano Mineral Oil hydraulics, you get consistent performance in wet or dry conditions without the degradation concerns of DOT fluid systems. The ST-4720-R works seamlessly with the BR-4770 flat mount calliper for a complete Tiagra hydraulic disc setup.

Compatibility & Fit

Right-hand lever only (rear brake / right-side shift in Australian setup). Compatible with 2x10-speed Tiagra 4700 drivetrains. Recommended brake calliper: BR-4770. Brake fluid: Shimano Mineral Oil (do not use DOT fluid). Handlebar clamp diameter: 23.8–24.2 mm (standard drop bar). For use with OT-SP41 outer casing and Optislick inner shift cable.