Now simplified with a single derailleur cage length, the new 12-speed Shimano ULTEGRA R8150 rear derailleur packs our fastest, most precise shifting into a more approachable option. With Shimano's 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.
Shimano's fastest ever rear shifting, 58% faster than RD-R9150
Compact design includes an integrated wireless unit, charger, and switch
LED status indicator
Battery indicator
Pairing
Adjust mode, etc.
Wider range capacity
Max. low sprocket: 34T
Weight: 262 g
Firmware update by E-TUBE PROJECT
Total capacity: 39T
Low sprocket_Max.: 34T
Low sprocket_Min.: 28T
Max. front difference: 16T
Top sprocket_Max.: 14T
Top sprocket_Min.: 11T
Charging port (pcs): 1
B-axle_Hollow axle
B-axle 2_Hollow axle
Direct mount compatible
Fluoric coated link bushings: 4
Guide and Tension pulley bearings
Sunken type pulley bolt
Pulley Teeth: 11
SHIMANO SHADOW RD
Rear speeds: 12
Wired Di2 shifting connectivity
Wireless ANT private: Adjust mode information, Di2 battery level, Gear position, SHIMANO STEPS data items
Wireless Bluetooth® LE custom: Adjust mode information, Compatible with E-TUBE PROJECT and E-TUBE RIDE, Di2 battery level, Gear position, SHIMANO STEPS data items
Wireless Di2 shifting connectivity
LED for system status
SD300 connector (pcs): Not available
SD300 port (pcs): 1
SD50 connector (pcs): Not available
SD50 port (pcs): Not available
Material: aluminium, stainless steel, steel, glass fiber reinforced polymer (CFRP)
Compatibility:
STI lever (Not included): ST-R9250, ST-R9270, ST-R9160, ST-R9180, ST-R8150, ST-R8170, ST-R8060
Cassette (Not included): CS-R9200, CS-R8100
Chain (Not included): CN-M9100, CN-M8100, CN-M7100, CN-M6100
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