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