MODEL NO

RD-R8150

SERIES

ULTEGRA R8100 Series

Color

Series color

Average weight

262

Remarks

w/o Bracket spec. available

Rear speeds

12

Top-normal spring type|SHIMANO SHADOW RD

✔

Mount|Direct attachment (Conventional)

✔

Mount|Direct Mount

✔

Max. front difference

16T

Total capacity

39T

Low sprocket|Max.

34T

Low sprocket|Min.

30T

Top sprocket|Max.

14T

Top sprocket|Min.

11T

Fluoric coated link bushings

4

Pulley|G pulley bearing

✔

Pulley|T pulley bearing

✔

Pulley|Teeth

11

Pulley|Sunken type pulley bolt

✔

B-axle|Hollow axle

✔

B-axle 2|Hollow axle

✔

Di2 connectivity wired|Di2 shifting

✔

Di2 connectivity wireless|Di2 shifting

✔

Di2 connectivity wireless|Bluetooth® LE custom (*1)|Adjust mode information

✔

Di2 connectivity wireless|Bluetooth® LE custom (*1)|Di2 battery level

✔

Di2 connectivity wireless|Bluetooth® LE custom (*1)|Gear position

✔

Di2 connectivity wireless|Bluetooth® LE custom (*1)|SHIMANO STEPS data items (*3)

✔

Di2 connectivity wireless|Bluetooth® LE custom (*1)|Compatible with E-TUBE RIDE

✔

Di2 connectivity wireless|Bluetooth® LE custom (*1)|Compatible with E-TUBE PROJECT

✔

Di2 connectivity wireless|ANT private (*2)|Adjust mode information

✔

Di2 connectivity wireless|ANT private (*2)|Di2 battery level

✔

Di2 connectivity wireless|ANT private (*2)|Gear position

✔

Di2 connectivity wireless|ANT private (*2)|SHIMANO STEPS data items (*3)

✔

Firmware update by E-TUBE PROJECT

✔

SD50 port (pcs)

0

SD300 port (pcs)

1

SD50 connector (pcs)

0

SD300 connector (pcs)

0

LED for system status

✔

Charging port (pcs)

1

Charging cable

EW-EC300