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Shimano Ultegra ST-R8020 Shifters and Disc Brake Calipers Left/Front
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Ultegra ST-R8020 Shifters and Disc Brake Calipers

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Hydro is here to stay.

Bringing hydraulic disc brake compatibility to their new-and-improved Ultegra shifters, Shimano's ST-R8020 Shifters and Disc Brake Calipers include everything that's needed to upgrade your bike. Providing greater rider control in all conditions, the BR-R8070 flat mount calipers offer sleek integration that won't corrupt your bike's aero profile. With ergonomics in mind, Shimano took design cues from their Dura-Ace 9100 groupset, shrinking the bracket while featuring a textured hood and redesigned shape for the optimal shifter placement and a firm, comfortable grip. With the addition of hydraulic disc braking, you'll have total control in all conditions, while receiving greater reach adjustment range for the perfect placement.


  • Series: Ultegra.
  • Gearing: 2 x 11-speed.
  • Brake compatibility: hydraulic disc brake.
  • Lever Material: Carbon Fiber Reinforced Plastic.
  • Lever Body Material: Carbon Fiber Reinforced Plastic.
  • Mount: Clamp (closed).
  • Shift Cable Casing: OT-SP41.
  • Shift Cable: Polymer coated.
  • Approx. Shifter Weight: 550g pair.
  • Approx. Brake Weight: 280g pair.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


Shifter Type: Drop Bar 


Mfg PartNum: IR8020DRRDSC170A 


Mfg PartNum: IR8020DLF4SC100A 

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1 stars
Very nice on my new gravel bike
by Kielbasa
Cycling Enthusiast
1 of 1 customers found this review helpful.

Built up a custom titanium gravel bike from scratch and debated between the Ultegra Group and GRX. I didn't care of the raised ridges on the GRX shifterbrake hoods because they'd likely make my hands go numb on long rides. The Ultegra shifters and brakes are phenomenal and not only do I love them on my gravel bike, but my wife has them on her's too. Zero issues thus far. The hoods are very comfy and I don't have any issues with my hands slipping on the hoods or levers even when I'm descending on 8-10% grades on gravel roadstrails or riding dirt single track. The lever throw is nominal. I have SRAM Red on my road bike and can't wait to replace with Shimano. Brakes are super powerful and effortless. Could not be happier.

Reviewed 7/29/2020
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Everything I hoped for
by Sfox
Cycling Enthusiast
San Deigo
1 of 1 customers found this review helpful.

I went from rim brakes to disc brakes and I cannot be any happier on how much better I am able to stop.

Reviewed 5/23/2019
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