ULTEGRA Di2 REAR DERAILLEUR 2X12s
RD-R8150

With our fastest, most accurate shifting, the new 12-speed ULTEGRA R8150 rear derailleur is more versatile than ever thanks to a single cage length option that is compatible with 28-34T low sprockets.

Color
Ser­ies­ col­or

With our fastest, most accurate shifting, the new 12-speed ULTEGRA R8150 rear derailleur is more versatile than ever thanks to a single cage length option that is compatible with 28-34T low sprockets.

BENEFIT

Our fastest ever rear shifting, 58% faster than RD-R9150

BENEFIT

Compact design includes an integrated wireless unit, charger, and switch

BENEFIT

LED status indicator

FEATURE

Battery indicator

FEATURE

Pairing

FEATURE

Adjust mode, etc.

BENEFIT

Wider range capacity

FEATURE

Max. low sprocket: 34T

Product Specification

PRODUCT SPECIFICATION

Model No

RD-R8150

Series

ULTEGRA

Rear speeds

12

RD construction

SHIMANO SHADOW RD

Mount

Direct attachment (conventional)

Direct mount

Max. front difference

16T

Total capacity

39T

Low sprocket

Max.

34T

Min.

30T

Top sprocket

Max.

11T

Min.

11T

Fluoric coated link bushings

4

Pulley

Guide pulley bearing

Tension pulley bearing

Teeth

11

Sunken type pulley screw

B-axle

Hollow axle

B-axle 2

Hollow axle

Di2 connectivity wired

Di2 shifting

Di2 connectivity wireless

Di2 shifting

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

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

Bluetooth® LE custom (*1)|Gear position

Bluetooth® LE custom (*1)|SHIMANO E-BIKE SYSTEMS data items (*3)

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

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

ANT private (*2)|Adjust mode information

ANT private (*2)|Di2 battery level

ANT private (*2)|Gear position

ANT private (*2)|SHIMANO E-BIKE SYSTEMS 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 cable

EW-EC300

Average weight

262

Remarks

w/o Bracket spec. available

Color

Series color

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