CLICK HERE to join our Email List and get 15% off your first order*
*Restrictions Apply. Click for details.
Signin to Your Account
Questions? Call our tri Specialists! 1-800-445-4790


Product Images

Shimano Ultegra ST-R8150 Shift/Rim Brake Lever Left Shifter
Shimano Ultegra ST-R8150 Shift/Rim Brake Lever Right Shifter
Left Shifter
Click to zoom
Shimano Ultegra ST-R8150 Shift/Rim Brake Lever 1
Shimano Ultegra ST-R8150 Shift/Rim Brake Lever 2

Shimano Ultegra ST-R8150 Shift/Rim Brake Lever

Pricing and Order Section

Mfg PartNum:
Earn $0.00 in Podium Club credit. Click to Learn More.

set $213.99-$424.99
MSRP: $213.99-$424.99
In Stock Now
This model is not eligible for Podium Club points
Price matches are is not eligible for Podium Club points
Qualifies for Free Shipping!


Even-Faster Shifts & More Controlled Rim Braking

The Ultegra ST-R8150 Di2 Shifter/Rim Brake Levers have all-new ergonomics, precise brake modulation, and electronic shifting. With even-faster shifts, more controllable braking, an updated lever shape, and a very long battery life, these new shifters reset the industry standard, all at a more affordable price than Dura-Ace models. Unlike the disc brake version, these shifters can only be used with a wired Di2 connection

Shimano's new ST-R8150 brake levers bring enhanced modulation and control to every ride by employing Shimano's SLR-EV dual symmetric pivot brake caliper actuating tech and Dual Control Levers.

A new Shimano E-Tube Project App (version 4.0.0) offers intuitive operations for personalizing the Ultegra R8100 drivetrain. Offering a suite of customizable, riders can choose between different shift speeds, customize shift button mapping (what buttons perform which functions), program different automatic shift modes like Synchro and Semi-Synchro shifts, fine-tune shifting, and connect with third party bike computers.


  • Unparalleled ergonomics engineering refined with pros' feedback
  • Raised hood peak improves ergonomics
  • Optimized brake control with lighter, smoother lever action
  • Compatible with only a wired connection
  • High electronic energy efficiency
  • Weight: 295g (/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.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.



Weight: 295g(/pair) 


Clamp Size: 23.8/24.2mm 


Shifter Type: Drop Bar 

Pair 2x12

Mfg PartNum: ISTR8150PA 

Left 2-speed

Mfg PartNum: ISTR8150L 

Right 12-speed

Mfg PartNum: ISTR8150R 

additional content loading
additional content loading
additional content loading