Shimano CUES ST-R4030-R is a right-side 9-speed drop-bar shift/brake lever built to give road and gravel riders a modern control layout with confident ergonomics and predictable operation. Drawing key design cues from the feel of Shimano’s higher-end road levers, the updated lever position and bracket shape help more hand sizes settle into a secure hood grip while keeping braking and shifting easy to access.
Designed for hydraulic disc brakes (calipers sold separately), the CUES U4030 Dual Control Lever pairs smooth, intuitive shifting with a refined lever shape that reduces reach—useful for riders who want consistent control from the hoods and in the drops without overextending to brake or shift.
105-inspired ergonomic development - Updated lever position and bracket design developed through research on different hand shapes for a more natural hood grip
Hydraulic disc brake compatibility - Supports reliable, controlled braking feel for drop-bar road and gravel setups (calipers sold separately)
Smooth, intuitive shifting - Tuned for the consistent lever action riders expect from Shimano CUES
Reach Adjust - Dial-in lever position to suit hand size, riding style, and individual preference
Shorter reach lever shape - Refined profile reduces reach distance for easier access to braking from a wider range of hand sizes
Composite/aluminum construction - High-strength, fiber-reinforced engineering composite lever body with a durable aluminum lever blade for dependable everyday use
Specifications & Identifiers
Adjustable Reach
Yes
Brake Lever Actuation
Hydraulic
Brake Lever Use
Right
Color
Black
Hydraulic Fluid Type
Mineral Oil
Number of Speeds
9-Speed
Rear Derailleur Compatibility
Shimano Road
Rotor Included
No
UPC
192790313337
EAN
MPN
ESTU4030RBI
Tree Fort ID:
333222478662
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