Shimano EW-JC304 SD300 Di2 4 Port Junction

Shimano Ultegra ST-R8150 Di2 12 Speed STI Levers Pair

• Di2 electronic shifting offers fast, precise gear changes with a light, tactile button press

• Synchro Shift and Semi-Synchro Shift compatible, allowing a single shifter to control both front and rear derailleurs (fully programmable via Shimano E-Tube)

• Semi-Synchro Shift automatically adjusts the rear derailleur when shifting the front, maintaining optimal cadence and gear ratios

• Tactile shift buttons ensure effortless operation, even in cold or wet conditions

• Drop bar STI design with familiar Shimano lever positioning for intuitive mechanical-style shifting feel

• Servo Wave brake lever pivot optimised for Super SLR rim brake calipers, delivering increased braking power and control

• Adjustable lever reach enables fine tuning for different hand sizes and riding positions

• Reliable wired Di2 connection using SD300 series wires

• Supplied as a pair, complete with SLR brake cable set

The Shimano Ultegra ST-R8150 Di2 STI Levers deliver elite-level electronic shifting and confident braking for high-performance road cycling. Featuring Shimano's advanced Di2 technology, these levers provide lightning-fast gear changes, exceptional ergonomics and fully customisable shifting to suit your riding style.

Designed for rim brake road bikes, the ST-R8150 levers combine intuitive control with Shimano's renowned reliability, making them ideal for racers and performance-focused enthusiasts alike.

Technical Specifications:

• Orientation: Pair (Left and Right)

• Speed: 12-Speed

• Shifting Type: Di2 Electronic

• Brake Type: Rim Brake

• Model Number: ST-R8150