Shimano Ultegra Di2 R8170 2x12 Groupset

If you want pro-level performance and value, Shimano Ultegra Di2 R8170 is the go-to choice for dedicated riders who expect the best from every ride. At Bike Clinique, we’re fully manufacturer-trained and have extensive experience fitting Ultegra Di2, so you get a flawless install, precise tuning, and ongoing support for total peace of mind.

Why Choose Ultegra Di2 R8170 at Bike Clinique?
Ultegra Di2 R8170 brings wireless shifting, a 12-speed drivetrain, and legendary Shimano reliability to your road bike. You get the latest tech—crisp, instant gear changes, fully customisable controls, and powerful, modulated braking—at a price that makes sense for serious enthusiasts. Ergonomics, shifting logic, and braking power mirror Dura Ace, giving you a true pro-level experience.

What’s Included:

• Shifters/Brakes: Ultegra Di2 ST-R8170 dual-control levers with BR-R8170 flat-mount calipers. Wireless, customisable via the Shimano E-Tube app, with Servo Wave Action for powerful, controlled braking and adjustable reach for all hand sizes.

• Rotors: Ultegra RT-CL800 Center Lock, 160mm front and rear, Ice-Tech cooling for consistent, fade-free stopping power.

• Crankset: Ultegra FC-R8100, 2x12-speed, your choice of 50-34, 52-36, or 46-36T chainrings, and crank lengths 160, 165, 170, 172.5, or 175mm. Hollowtech II arms for low weight and high stiffness.

• Front Derailleur: Ultegra Di2 FD-R8150, compact, auto-trim for perfect, silent shifts.

• Rear Derailleur: Ultegra Di2 RD-R8150, wireless, lightning-fast, compatible with 11-34T or 11-36T cassettes.

• Cassette: Ultegra CS-R8100, 12-speed, 11-34T or 11-36T, Hyperglide+ for seamless, quiet shifting even under load.

• Chain: Ultegra/Deore XT CN-M8100, 12-speed, 116 links, with chain lock and SIL-TEC coating for smooth, long-lasting performance.

• Battery & Charging: BT-DN300 internal battery (hidden in seatpost or steerer), E-Tube internal cabling (EW-SD300-I), and EW-EC300 charging cable for easy, in-bike recharging.

Specs at a Glance:

• 2x12-speed (wireless electronic)

• Crank Lengths: 160, 165, 170, 172.5, 175mm

• Chainring Options: 50-34, 52-36, 46-36T

• Cassette: 11-34T or 11-36T

• Brake: Hydraulic disc, flat mount, 160mm rotors

• Freehub: Shimano 11/12-speed Road

• Battery Life: ~2000km per charge

• Color: Black, silver

• Weight: ~2777g (ready to ride)

How Does It Ride?
Ultegra Di2 R8170 is all about effortless, precise shifting, powerful braking, and a cockpit that’s clean, quiet, and fully customisable. The drivetrain is smooth and silent, the gear range is perfect for everything from long climbs to fast sprints, and the braking gives you total confidence on any descent. Riders love the intuitive controls, the refined ergonomics, and the reliability that comes with a pro-level install.

Why Trust Bike Clinique?
With full Shimano manufacturer training and years of hands-on experience, you get expert advice, a perfect install, and ongoing support. We’ll check your frame compatibility, talk through gearing and setup options, and provide a clear estimate before any work begins.

Ready to transform your road ride with Ultegra Di2?
Book a consultation, schedule your upgrade online, or call us on 07951125843. Pop into our Wimbledon workshop for a demo, get honest, jargon-free advice, and let us help you unlock the best of Shimano Ultegra for your next ride.