Shimano Ultegra R8100 / R8150 / R8170 Di2 12-Speed Disc Brake Road Groupset
Crank Length: 170 mm
Chainrings: 50/34T
Cassette: 11-34T
The Shimano Ultegra R8100 Di2 is Shimano’s premium electronic 12-speed road groupset, incorporating many technologies developed for Dura-Ace while offering outstanding value for performance-oriented riders. Featuring fast and precise Di2 shifting, powerful hydraulic disc brakes, and advanced wireless cockpit integration, it is an excellent choice for road, endurance, and race bikes.
This groupset is supplied in the specified configuration with a 170 mm crankset, 50/34T compact chainrings, and an 11-34T cassette.
For other available configurations and gearing options, please contact us.
KEY FEATURES
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Shimano Ultegra Di2 R8100 series
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12-speed electronic shifting system
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Hydraulic disc brake configuration
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Fast and precise Di2 shifting
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Wireless communication between shifters and the system
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Excellent braking performance in all weather conditions
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Suitable for road and endurance bikes
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Designed for racing and intensive riding
TECHNICAL SPECIFICATIONS
| Specification | Details |
|---|
| Series | Shimano Ultegra R8100 / R8150 / R8170 |
| Speeds | 2x12 |
| Shifting System | Di2 Electronic |
| Brake Type | Hydraulic Disc Brake |
| Crank Length | 170 mm |
| Chainring Combination | 50/34T |
| Cassette | 11-34T |
| Application | Road Cycling |
GROUPSET CONTENTS
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Shimano Ultegra crankset
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Front derailleur
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Rear derailleur
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Di2 dual control levers
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Hydraulic brake calipers
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Brake hoses
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Cassette
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Chain
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Battery and required electronic components (exact contents may vary depending on version)
IMPORTANT INFORMATION
Supplied in OEM packaging without individual retail boxes.
OEM products are genuine Shimano components typically intended for complete bicycle assembly or professional workshop use.
IN PRACTICE
The Shimano Ultegra Di2 R8100 groupset is one of the most popular choices for riders seeking professional-level shifting and braking performance without the premium cost of a Dura-Ace system. Its lightning-fast electronic shifting, refined ergonomics, and powerful hydraulic disc brakes deliver confidence, efficiency, and reliability in every riding situation, from long endurance rides to competitive racing.
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