Shimano Ultegra ST-R8020 11-speed disc road bike left-hand lever - ISTR8020LI

The Ultegra ST-R8020 left- Shimano e is a brake and gear lever designed for road bikes fitted with hydraulic disc brakes and 11-speed mechanical drivetrains. Part of the Ultegra R8000 groupset, it offers an excellent balance between performance, ergonomics and reliability, drawing directly on Dura-Ace technologies for more precise and comfortable handling.

Designed for the left hand, this lever controls the hydraulic front brake and, depending on the bike’s configuration, the front derailleur (2x11 system). It features a compact lever body, redesigned ergonomics and a reach adjustment, allowing the lever position to be adapted to different body types and riding preferences.

The integrated hydraulic braking system ensures powerful and progressive control, even in challenging conditions (rain, long descents, rough terrain), whilst gear changes remain smooth and intuitive thanks to the dual-control system Shimano optimised for the R8000 series.

Technical specifications

• Brand: Shimano
• Range: Ultegra R8000
• Model: ST-R8020 (left)
• Part number: ISTR8020LI
• Drivetrain: 11-speed (2x11 depending on configuration)
• Type: dual-control lever (brake + front derailleur)
• Braking: hydraulic disc
• Reach adjustment: yes
• Compatibility: Shimano -series 11-speed mechanical and hydraulic road groupsets (Ultegra R8000, 105 R7000 compatible depending on configuration)
• Position: left-hand side

Key features

• Powerful, progressive and reliable hydraulic braking
• Compact, Dura-Ace-inspired ergonomics
• Greater comfort over long distances
• Reach adjustment for a precise fit
• Smooth and intuitive gear changes
• Excellent reliability in intensive road use

FAQ

What is the ST-R8020 left-hand grip used for?

It controls the hydraulic front brake and the front derailleur (on compatible 2x11-speed Shimano set-ups).

Is it compatible with all Shimano groupsets?

No. It is designed for the R8000-generation Shimano 11-speed hydraulic road groupsets (Ultegra and certain compatible 105 models).

Can it be used with rim brakes?

No, this model is designed exclusively for hydraulic disc brakes.

Can you replace just one lever?

Yes, the ST-R8020 levers are sold individually (left or right), allowing for replacement on a per-unit basis.

How does it differ from the right-hand version?

The left-hand lever controls the front brake and front derailleur, whilst the right-hand lever controls the rear brake and rear derailleur.