Shimano Ultegra R8170 12 Speed Disc Groupset – Di2 Electronic Road Bike Groupset
Shimano Ultegra R8170 12 Speed Disc Groupset – Di2 Electronic Road Bike Groupset
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Shimano Ultegra R8170 12 Speed Disc Groupset
Advanced 12-Speed Di2 Electronic Disc Groupset for Performance Road Cycling
The Shimano Ultegra R8170 12 Speed Disc Groupset delivers pro-inspired performance at a competitive weight and price point. Sharing key technology with Shimano’s flagship Dura-Ace platform, this 12-speed Di2 electronic groupset provides fast, precise shifting, efficient power transfer and powerful hydraulic disc braking for modern road bikes.
Engineered for competitive road riders, endurance cyclists and serious enthusiasts, the Ultegra R8170 features Shimano’s semi-wireless Di2 system, Hyperglide+ shifting and refined ergonomics. The result is a high-performance road bike drivetrain built for speed, control and long-distance reliability.
Key Features
12-Speed Semi-Wireless Di2 Shifting
The updated Di2 system offers wireless cockpit connectivity with fast and reliable electronic gear changes. Riders benefit from clean cable routing, responsive shifting and consistent performance under load.
Hyperglide+ Drivetrain Technology
Hyperglide+ enables smooth, seamless shifting even during hard efforts. You can change gears while sprinting or climbing without disrupting pedalling rhythm or losing momentum.
Hydraulic Disc Brake Performance
Ultegra R8170 hydraulic disc brakes provide powerful stopping control in all weather conditions. Improved modulation and reduced brake noise enhance confidence on technical descents.
Optimised Drivetrain Efficiency
The redesigned crankset and 12-speed cassette improve gear progression and drivetrain efficiency, delivering smooth power transfer and reliable performance across varied terrain.
Race-Inspired Ergonomics
Refined hood shape and brake lever design improve comfort and hand positioning, offering greater control during long rides, racing and high-intensity training sessions.
Lightweight and Durable Construction
Built from high-quality materials, the Ultegra R8170 groupset balances weight, stiffness and durability for demanding road cycling conditions.
Specifications
Series: Ultegra R8170
Speed: 12-speed
Shifting System: Di2 electronic semi-wireless
Brake Type: Hydraulic disc brake
Crankset: Hollowtech II (multiple crank lengths available)
Cassette Compatibility: Shimano 12-speed road cassette
Chain Compatibility: 12-speed Hyperglide+ chain
Battery: Internal rechargeable Di2 battery
Intended Use: Road racing, endurance riding, performance road cycling
Technology Platform: Di2, Hyperglide+, Hollowtech II
Why Choose the Shimano Ultegra R8170 12 Speed Disc Groupset?
Advanced 12-speed Di2 electronic shifting
Semi-wireless system for clean cockpit integration
Smooth Hyperglide+ shifting under load
Powerful hydraulic disc braking in all conditions
Excellent balance of performance, weight and value
Ideal for racing, sportives and serious road upgrades
The Shimano Ultegra R8170 12 Speed Disc Groupset is the perfect choice for riders seeking professional-level technology without the flagship price tag. Whether upgrading your road bike or building a high-performance machine, this electronic disc groupset delivers speed, precision and all-day reliability.
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FAQ
How long does a Gold Service take?
As this is a full strip down and rebuild, it usually takes slightly longer than our other services. Most Gold services are completed within 1 to 2 weeks depending on workload and any additional parts required.
Is this service suitable for older bikes?
Yes. Older bikes often benefit the most from a full strip down, especially if they have not had a thorough service in some time.
Will parts be replaced automatically?
No. We will always contact you before replacing any worn or damaged parts. No additional work is carried out without your approval.
What is the difference between Silver and Gold?
The Gold Service includes a full strip down and rebuild, along with headset and bottom bracket removal and re-greasing. Silver focuses more on adjustment, wheel truing, and drivetrain cleaning.
How often should I book a Gold Service?
For regularly ridden bikes, once a year is a good guideline. If you ride in harsh conditions or high mileage, you may benefit from it more frequently.