Now faster and more precise than ever, Shimano's new Ultegra R8150 12-speed rear derailleur is more versatile than ever thanks to a single clevis length that's compatible with large sprockets from 28 to 34 teeth.
Specifications
- 58% faster than the R9150 front derailleur
- Weight: 262g
- Chain compatibility: HG 12-speed
- Chain line: 44.5 cm
- Total capacity: 39 teeth
- Maximum small sprocket size: 34 teeth
- Minimum size of small sprocket: 28 teeth
- Maximum size of large sprocket: 14 teeth
- Minimum size of large sprocket: 11 teeth
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