Shimano Ultegra Di2 RD-R8150 Rear Derailleur - 12-speed

Now simplified with a single derailleurcage length, the new 12-speed Shimano ULTEGRA R8150 rear derailleur packs ourfastest, most precise shifting into a more approachable option.

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

FEATURES:

Our fastest ever rear shifting, 58% fasterthan RD-R9150

Compact design includes an integratedwireless unit, charger, and switch

LED status indicator

Battery indicator

Pairing

Adjust mode, etc.

Wider range capacity

Max. low sprocket: 34T

SPECIFICATIONS

MODEL NO    RD-R8150

SERIES    ULTEGRAR8100 Series

Average weight      262g

Remarks         w/oBracket spec. available

Firmware update by E-TUBE PROJECT ✔

Total capacity         39T

Charging port (pcs)        1

B-axle_Hollow axle        ✔

B-axle 2_Hollow axle     ✔

Mount_Direct Mount     ✔

Fluoric coated link bushings 4

Low sprocket_Max.        34T

Low sprocket_Min.         28T

Max. front difference    16T

Pulley_G pulley bearing         ✔

Pulley_Sunken type pulley bolt      ✔

Pulley_Teeth 11

Pulley_T pulley bearing         ✔

Top-normal spring type_SHIMANO SHADOW RD         ✔

Top sprocket_Max.         14T

Top sprocket_Min. 11T

Rear speeds   12

Di2 connectivity wired_Di2 shifting      ✔

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)    ✔

Di2 connectivity wireless_Bluetooth® LEcustom (*1)_Adjust mode information        ✔

Di2 connectivity wireless_Bluetooth® LEcustom (*1)_Compatible with E-TUBE PROJECT         ✔

Di2 connectivity wireless_Bluetooth® LEcustom (*1)_Compatible with E-TUBE RIDE        ✔

Di2 connectivity wireless_Bluetooth® LEcustom (*1)_Di2 battery level     ✔

Di2 connectivity wireless_Bluetooth® LEcustom (*1)_Gear position ✔

Di2 connectivity wireless_Bluetooth® LEcustom (*1)_SHIMANO STEPS data items (*3)    ✔

Di2 connectivity wireless_Di2 shifting ✔

LED for system status    ✔

SD300 connector (pcs)   0

SD300 port (pcs)    1

SD50 connector (pcs)     0

SD50 port (pcs)      0