The redesigned Shimano Ultegra Di2 ST-R8170 brake levers with BR-R8170 caliper deliver enhanced ergonomics and superior brake modulation through SHIMANO's proven SERVO WAVE technology.
Wireless electronic shifting puts precise control at your fingertips, enabling seamless gear changes and confident braking in any riding condition. Built for performance and reliability on any terrain.
Features
- FASTEST AND MOST RELIABLE SWITCHING OPERATIONS EVER
- Improved aerodynamics - Revised DUAL CONTROL shift/brake levers with raised and rounded brake grips
- The drive can be adjusted to the rider's preferences via the E-TUBE app
- Among other things, the shift speed can be set, a fully or semi-synchronous shift mode can be selected and the programme buttons on the shift lever can be assigned certain functions
- Wireless where it matters
- SHIMANO's in-house developed, extremely secure Di2 wireless chip scores with low interference probability, unrivalled processing speed and lower energy consumption
- Fastest gear changes front and rear
- Quieter and more maintenance-friendly brake components
- Excellent brake control and heat dissipation
- Simple wheel replacement
- Easy and clean bleeding system
- High electronic energy efficiency
- 1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries
Specification
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Use: Road
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Group: Ultegra Di2 R8150
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Model: ST-R8170-R
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Type: Dual-Control (STI)
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Handlebar mounting: right
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Gear rear: 12-speed
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Optical gear display: No
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Lever reach adjust: Yes
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Handlebar diameter: 23.8mm/24.2mm
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Brake-type: Hydraulic Disc Brake
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Brake caliper: BR-R8170
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Brake mounting: Flat-Mount
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Brake pads: L03A Resin with Fin
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Brake hose: SM-BH90-JK-SSR rear 1700mm (shortable)
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One-Way bleeding: Yes
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Brake fluid: Mineral oil
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Recommended brake rotor: RT-MT800 (140mm/160mm)
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Compatible electric wire: EW-SD300
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E-tube Project: Yes
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E-tube port (pcs): 2
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E-tube connector (pcs): 0
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Di2 Wireless-Chip: Yes
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Battery: CR1632 x 1
Material
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Body: CFRP
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Lever: Carbon, painted
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Caliper: Aluminium
Colour
Contents
- 1 x Shimano Ultegra Di2 ST-R8170 12-speed STI Dual Control right
- 1 x Shimano Ultegra BR-R8170 Flat-Mount Disc Brake Caliper
- 1 x Brake Pads L03A-Resin with Fin
- 1 x Brake Hose SM-BH90-JK-SSR 1700mm (shortable)
- 2 x Screw for brake caliper (38mm)
- 1 x Tube Joint Kit
- 1 x CR1632 Battery
The brake hose SM-BH90-JK-SSR is with mineral oil filled and pre-mounted on the caliper BR-R8170
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Weights are based off pre-production products at time of publication. Weights may vary in final production.
