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.
- Shimano Shadow RD
- Shimano Direct Mount Rear Derailleur
- 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
- Max. front difference: 16T
- Total capacity: 39T
- Low sprocket Max.: 34T
- Low sprocket Min.: 30T
- Top sprocket Max.: 11T
- Top sprocket Min.: 11T
- Fluoric coated link bushings: 4
- Pulley teeth: 11
- Average weight: 262
- SD300 port
- Charging cable: EW-EC300
