Specifications
As listed in the manufacturer's catalog.
General
- Series
- ULTEGRA
- Model no.
- FC-R8100-P
- Chainring combination
- 50-34T, 52-36T, w/o chainrings
- Cadence measurement / Magnet
- Yes
- Accuracy (%)
- ±2
- LED for system status
- Yes
- Number of control button
- 1
- Active temperature compensation
- Yes
- Firmware update by E-TUBE PROJECT
- Yes
- SD50 port (pcs)
- 0
- SD300 port (pcs)
- 0
- SD50 connector (pcs)
- 0
- SD300 connector (pcs)
- 0
- Average weight (g) (170 mm, w/o bottom bracket)
-
- Note * Compatible with a Bluetooth LE cycle computer and smartphone/tablet but not freely open profile. ** Compatible with ANT+ cycle computer but not freely open profile. *** Will be shown only when connected to SHIMANO E-BIKE SYSTEMS bike.
-
Crank arm length (mm)
- 160
- ✔ *1
- 165
- Yes
- 170
- Yes
- 172.5
- Yes
- 175
- Yes
Force measurement
- Right side
- Yes
- Left side
- Yes
- Number of strain sensor
- 24
Zero offset
- By control button
- Yes
- By device
- Yes
Battery
- Type / Lithium ion
- Yes
- Life
- 226 h
- Charging port
- Yes
- Charging cable
- EW-EC300
Di2 connectivity wireless
- Bluetooth® LE / Cycling power
- Yes
- ANT+ / Bicycle power
- Yes
- Bluetooth® LE custom (*) / Compatible with E-TUBE RIDE
- Yes
- Bluetooth® LE custom (*) / Compatible with E-TUBE PROJECT
- Yes
How spec sheets write it
The most common ways bicycle spec sheets name it, by number of mentions.
-
Shimano Ultegra FC-R8100-P, Powermeter, Hollowtech ll, 52x36T
-
SHIMANO FC-R8100-P Powermeter ULTEGRA 170/172.5/175mm 52/36T
-
Shimano Ultegra Di2 R8100-P 12s 52-36T Powermeter
-
Shimano Ultegra FC-R8100 4iiii Precision Powermeter
-
Shimano, Ultegra 12sp, FC-R8100, 4iiii precision 3+ power meter, for rear 12- speed, 52x36T, Crank Length: 170mm-47/53cm, 172.5mm-55/59cm
-
SHIMANO ULTEGRA FC-R8100-P 52/36T POWERMETER
-
Shimano Ultegra Power meter R8100-P 52/36 (XS/S: 170 mm, M/L: 172,5 mm, XL: 175 mm)
-
Shimano Ultegra FC-R8100 4iiii Precision Powermeter, Number of chainrings 2
Bicycles
Published bicycles that use it, newest model years first.
