- 33
- 182 (Front) 180 (Rear)
Specifications
As listed in the manufacturer's catalog.
General
- Series
- ULTEGRA
- Model no.
- BR-R8100
- Color / 1
- Series color
- Type
- SLR-EV Dual Pivot
- Reach (mm)
- 51
- Compatibility
- SLR-EV
- Cartridge shoe holder
- Yes
- Tire guide bumpers
- Yes
- Quick release lever
- Yes
- Shoe angle adjusting
- Yes
- Maximum tire size
- 28C
- Rim width (mm)
- 20.8-28
- Quick release lever / Material
- Resin
- Average weight (g)
-
Brake shoe
- Standard
- R55C3
- Optional choice
- R55C4 carbon, R55C4-A carbon, R55CT4
Assembly pivot nut (mm)
- Front (mm) / 10.5
- Yes
- Front (mm) / 12.5
- Yes
- Front (mm) / 18.0
- Yes
- Front (mm) / 27.0
- Yes
- Front (mm) / 32.0
- Yes
- Rear (mm) / 10.5
- Yes
Cartridge shoe holder
- Material
- Aluminum
- Finish
- Painted
C-arm
- Material
- Aluminum
- Finish
- Anodized
Y-arm
- Material
- Aluminum
- Finish
- Anodized
Gate
- Material
- Aluminum
- Finish
- Anodized
How spec sheets write it
The most common ways bicycle spec sheets name it, by number of mentions.
-
Ultegra R8100 Direct Mount avant
-
Ultegra BR-R8100 Brake Callipers F+R
-
Ultegra R8100 Direct Mount front
-
Front: Shimano Ultegra 8100, Rear: Shimano Ultegra 8100
-
Front: Shimano Hydraulic Disc brake Ultegra Di2 R8100, 160 mm, Rear: Shimano Hydraulic Disc brake Ultegra Di2 R8100, 140 mm
-
Front: Shimano Ultegra R8100, hydraulic brake, Rear: Shimano Ultegra R8100, hydraulic brake
-
Shimano Hydraulic Disc brake Ultegra Di2 R8100, 140 mm
-
Shimano Ultegra Br-8100 Ferraduras
Bicycles
Published bicycles that use it, newest model years first.
