Shimano Ultegra Di2 RD-R8150 12spd Rear Derailleur

Ultegra Di2 Rear Derailleur 2X12s

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.

Features

• Our fastest ever rear shifting, 58% faster than RD-R9150
• LED status indicator
• Battery indicator
• Pairing
• Adjust mode, etc.Wider range capacity
• Max. low sprocket: 34T

Specifications

• 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
• 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