Shimano Rear Derailleur Ultegra RD-R8150 Di2 12 Speed

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 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
• 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

SPECIFICATIONS

• Model No: RD-R8150
• Series: Ultegra R8100 Series
• Color: Series color
• Average weight: 262
• Remarks: w/o Bracket spec. available
• Firmware update by E-Tube Project: Yes
  
• Total capacity: 39T
• Charging port (pcs): 1
• B-axle Hollow axle: Yes
• B-axle 2 Hollow axle: Yes
• Mount Direct attachment (Conventional): Yes
• Mount Direct Mount: Yes
• Fluoric coated link bushings: 4
• Low sprocket Max.: 34T
• Low sprocket Min.: 30T
• Max. front difference: 16T
• Pulley G pulley bearing: Yes
• Pulley Sunken type pulley bolt: Yes
• Pulley Teeth: 11
• Pulley T pulley bearing: Yes
• Top-normal spring type Shimano Shadow Rd: Yes
• Top sprocket Max.: 14T
• Top sprocket Min.: 11T
• Rear speeds: 12
• Charging cable: EW-EC300
• Di2 connectivity wired Di2 shifting: Yes
• Di2 connectivity wireless ANT private (*2) Adjust mode information: Yes
• Di2 connectivity wireless ANT private (*2) Di2 battery level: Yes
• Di2 connectivity wireless ANT private (*2) Gear position: Yes
• Di2 connectivity wireless ANT private (*2) SHIMANO STEPS data items (*3): Yes
• Di2 connectivity wireless Bluetooth® LE custom (*1) Adjust mode information: Yes
• Di2 connectivity wireless Bluetooth® LE custom (*1) Compatible with E-TUBE PROJECT: Yes
• Di2 connectivity wireless Bluetooth® LE custom (*1) Compatible with E-TUBE RIDE: Yes
• Di2 connectivity wireless Bluetooth® LE custom (*1) Di2 battery level: Yes
• Di2 connectivity wireless Bluetooth® LE custom (*1) Gear position: Yes
• Di2 connectivity wireless Bluetooth® LE custom (*1) SHIMANO STEPS data items (*3): Yes
• Di2 connectivity wireless Di2 shifting: Yes
• LED for system status: Yes
• SD300 connector (pcs): 0
• SD300 port (pcs): 1
• SD50 connector (pcs): 0
• SD50 port (pcs): 0