- 921
- 2
- Hydraulic disc brake
- 2
- Flat mount
Specifications
As listed in the manufacturer's catalog.
General
- Series
- ULTEGRA
- Color / 1
- Series color
- Brake type
- Hydraulic disc brake
- Brake hose (kit)
- SM-BH90-JK-SSR, SM-BH90-J-SSR
- Hose joint
- Straight
- Brake hose color (kit) / 1
- Black
- J-Kit spec (for OEM)
- Yes
- ICE TECHNOLOGIES pad compatible caliper
- Yes
- Recommended brake lever
- ST-R8070, ST-R8020
- Recommended disc brake rotor / W/ metal and resin pad
- SM-RT800
- Oil
- SHIMANO Mineral
- ONE WAY BLEEDING
- Yes
- Mount type
- Flat mount
- Piston
- 2
- Piston material
- Ceramic
- Pad mount
- Pad axle
Pad
- Standard 1
- K05S-RX Resin (w/o fin)
- Standard 2
- L05A-RF Resin (w/ fin)
- Option 1
- K04S-MX Metal (w/o fin)
- Option 2
- L04C-MF Metal (w/ fin)
Caliper
- Material
- Aluminum
- Finish
- Anodized
Caliper fixing screw
- Material
- Steel
- Tool size
- 4 mm
Variants
The manufacturer's versions of this model (code suffix, color, cage). Each figure counts spec sheets that name that exact version; most name only the model.
How spec sheets write it
The most common ways bicycle spec sheets name it, by number of mentions.
-
Shimano Ultegra R8070
-
Shimano BR-R8070
-
Shimano Ultegra hydraulic disc, flat mount
-
SHIMANO ULTEGRA R8070 FLAT MOUNT
-
SHIMANO ULTEGRA BR-R8070
-
Shimano Ultegra flat mount hydraulic disc
-
Front: Shimano Ultegra R8070, hydraulic disc, Rear: Shimano Ultegra R8070, hydraulic disc
-
Shimano Ultegra Di2 R8070 2s, Weight: 180 g | Shimano Ultegra Di2 R8070 11s, Weight: 180 g
Bicycles
Published bicycles that use it, newest model years first.
