Shimano Tiagra ST-R4020 2 Speed Mechanical Shift Hydraulic STI Lever, Left Rear

Shimano Tiagra ST-R4020 2 Speed Mechanical Shift Hydraulic STI Lever – Left Rear combines smooth front shifting with powerful hydraulic disc braking performance for dependable control on road and gravel rides. Featuring Shimano’s ergonomic Dual Control design, the compact lever body and comfortable hood shape provide excellent hand support and confident handling over long distances.

The precise 2-speed mechanical shifting delivers quick and reliable front derailleur operation, while the hydraulic disc brake system offers strong, consistent stopping power in all riding conditions. Reach adjustment allows riders to tailor the lever position for improved comfort and control. Designed for compatibility with Shimano Tiagra 10-speed road hydraulic groupsets and Shimano mineral oil brake systems.

Features:
- 2-speed mechanical front shifting with hydraulic disc brake control
- Ergonomic hood design for improved comfort and grip
- Smooth and accurate front gear changes
- Powerful and controllable hydraulic braking performance
- Adjustable lever reach for personalised fit
- Easy maintenance hydraulic system using Shimano mineral oil