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  • Available at 06.08.2026
Item no: 20257157

Product information "CUES ST-U4030+BR-U6030 9-speed Disc Brake rear"

A new lever design offers ambitious cyclists greater control; the new Shimano CUES 9-speed STI lever ST-U4030, paired with the BR-U6030 flat-mount brake caliper for hydraulic disc brakes, delivers outstanding braking performance.

KEEPS YOU MOVING: CUES 9-speed STI unit ST-U4030 + BR-U6030 rear disc brake from Shimano

The new lever design offers ambitious riders significantly more control. What’s more, the SHIMANO CUES U4030 DUAL-CONTROL LEVERS now feature the latest functions. Their improved lever position and grip design are the result of extensive research into different hand shapes. Enthusiastic road and gravel cyclists can now benefit from a new lever shape, the reliable performance of the hydraulic disc brakes and the smooth, intuitive shifting they have come to expect from SHIMANO CUES.
The SHIMANO CUES Flat Mount hydraulic disc brake has been specially developed for the popular 160 mm brake discs and features an integrated design that eliminates the need for an additional adapter. The simple and lightweight 2-piston design ensures reliable braking performance in all conditions.


Features – Shimano CUES ST-U4030 9-speed STI unit + BR-U6030 rear disc brake

  • 9-speed DUAL-CONTROL LEVERS compatible with mechanical shifting, featuring improved ergonomics
  • The new lever shape offers an optimised grip width to allow riders with a wide range of hand sizes to access the lever comfortably
  • Right-hand mounting position for 2 x 9-speed shifting system
  • Simple, integrated design specifically for 160mm disc brakes
  • Simple cable connection system (J-Kit)
  • Simple, clean bleeding system
  • ONE WAY BLEEDING

Product features

  • Applications: Gravel, road bike, cyclocross
  • Group: CUES U6030
  • Model: ST-U4030-R
  • Type: Dual-Control (STI)
  • Mounting: right
  • Rear derailleur speeds: 9-speed
  • Visual gear indicator: no
  • Grip width adjustment: Yes, with tool
  • Handlebar diameter: 23 .8 mm/24.2 mm
  • Brake type: Hydraulic braking system (disc brakes)
  • Brake caliper: BR-U6030-R (2-piston)
  • Brake caliper mount: Flat-mount
  • Brake pads: B05S-RX resin without cooling fins
  • Brake hose: SM-BH59-JK-SS rear 1700mm (can be shortened)
  • Hose connection: Straight
  • One-way bleed valve: Yes
  • Brake fluid: Mineral oil
  • Recommended brake disc: SM-RT54 , SM-RT30

Material

  • Lever: Aluminium
  • Caliper: Aluminium

Colour

  • Series color

Contents

  • 1 x CUES ST-U4030 9-speed STI unit (right-hand)
  • 1 x CUES BR-U6030-R flat-mount brake calliper
  • 1 x B05S-RX resin brake pads without cooling fins
  • 1 x SM-BH59-JK-SS brake line, 1700mm (can be cut to length)
  • 2 x fixing bolts for brake caliper
  • 1 x Hose connection kit
  • 1 x internal gear cable, 2200mm
  • 1 x SIS OT-SP41 inner cable outer sheath
  • 1 x End cap + end sleeve
  • J-Kit – The SM-BH59-JK-SS brake line is filled with mineral oil and pre-fitted to the BR-U6030 brake caliper!

Brake disc not included!

For a suitable brake disc >CLICK HERE<

  • Manufacturer number: EU40303DRRDRC170A
  • EAN: 4550170313708

  • Manufacturer:
    SHIMANO INC.
    3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
    590-8577 Osaka
    Japan
    https://www.shimano.com

    Person responsible in the EU:
    Shimano Europe BV
    High Tech Campus 92
    NL-5656 Eindhoven
    Netherlands
    [email protected]
    https://www.shimano.com

Shimano CUES ST-U4030+BR-U6030 9-speed Disc Brake rear

A new lever design offers ambitious cyclists greater control; the new Shimano CUES 9-speed STI lever ST-U4030, paired with the BR-U6030 flat-mount brake caliper for hydraulic disc brakes, delivers outstanding braking performance.

KEEPS YOU MOVING: CUES 9-speed STI unit ST-U4030 + BR-U6030 rear disc brake from Shimano

The new lever design offers ambitious riders significantly more control. What’s more, the SHIMANO CUES U4030 DUAL-CONTROL LEVERS now feature the latest functions. Their improved lever position and grip design are the result of extensive research into different hand shapes. Enthusiastic road and gravel cyclists can now benefit from a new lever shape, the reliable performance of the hydraulic disc brakes and the smooth, intuitive shifting they have come to expect from SHIMANO CUES.
The SHIMANO CUES Flat Mount hydraulic disc brake has been specially developed for the popular 160 mm brake discs and features an integrated design that eliminates the need for an additional adapter. The simple and lightweight 2-piston design ensures reliable braking performance in all conditions.


Features – Shimano CUES ST-U4030 9-speed STI unit + BR-U6030 rear disc brake

  • 9-speed DUAL-CONTROL LEVERS compatible with mechanical shifting, featuring improved ergonomics
  • The new lever shape offers an optimised grip width to allow riders with a wide range of hand sizes to access the lever comfortably
  • Right-hand mounting position for 2 x 9-speed shifting system
  • Simple, integrated design specifically for 160mm disc brakes
  • Simple cable connection system (J-Kit)
  • Simple, clean bleeding system
  • ONE WAY BLEEDING

Product features

  • Applications: Gravel, road bike, cyclocross
  • Group: CUES U6030
  • Model: ST-U4030-R
  • Type: Dual-Control (STI)
  • Mounting: right
  • Rear derailleur speeds: 9-speed
  • Visual gear indicator: no
  • Grip width adjustment: Yes, with tool
  • Handlebar diameter: 23 .8 mm/24.2 mm
  • Brake type: Hydraulic braking system (disc brakes)
  • Brake caliper: BR-U6030-R (2-piston)
  • Brake caliper mount: Flat-mount
  • Brake pads: B05S-RX resin without cooling fins
  • Brake hose: SM-BH59-JK-SS rear 1700mm (can be shortened)
  • Hose connection: Straight
  • One-way bleed valve: Yes
  • Brake fluid: Mineral oil
  • Recommended brake disc: SM-RT54 , SM-RT30

Material

  • Lever: Aluminium
  • Caliper: Aluminium

Colour

  • Series color

Contents

  • 1 x CUES ST-U4030 9-speed STI unit (right-hand)
  • 1 x CUES BR-U6030-R flat-mount brake calliper
  • 1 x B05S-RX resin brake pads without cooling fins
  • 1 x SM-BH59-JK-SS brake line, 1700mm (can be cut to length)
  • 2 x fixing bolts for brake caliper
  • 1 x Hose connection kit
  • 1 x internal gear cable, 2200mm
  • 1 x SIS OT-SP41 inner cable outer sheath
  • 1 x End cap + end sleeve
  • J-Kit – The SM-BH59-JK-SS brake line is filled with mineral oil and pre-fitted to the BR-U6030 brake caliper!

Brake disc not included!

For a suitable brake disc >CLICK HERE<

  • Manufacturer number: EU40303DRRDRC170A
  • EAN: 4550170313708

  • Manufacturer:
    SHIMANO INC.
    3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
    590-8577 Osaka
    Japan
    https://www.shimano.com

    Person responsible in the EU:
    Shimano Europe BV
    High Tech Campus 92
    NL-5656 Eindhoven
    Netherlands
    [email protected]
    https://www.shimano.com

Material

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