描述
DURA-ACE RD-R9250 整合系統充電端與無線連接組件，可提供超快速精準的變速性能。 相容於 28-34T 低位後飛輪齒片的單一支架長度賦予全球最佳的公路車零件組嶄新的多功能性。 BENEFIT 前所未見的後變速性能，比 RD-R9150 快 58%
BENEFIT
簡潔的外觀設計包含整合式無線裝置、充電器和開關
LED 狀態指示燈 FEATURE 電池指示燈
更大的齒比範圍
FEATURE 配對
調整模式
最大飛輪齒片相容性：34T BENEFIT CFRP 後變速器導板
PRODUCT SPECIFICATION
RD-R9250
| Series | DURA-ACE | ||
|---|---|---|---|
| Model no. | RD-R9250 | ||
| Color | 1 | Series color | |
| 2 | – | ||
| Rear speeds | 12 | ||
| RD construction | SHIMANO SHADOW RD | ✔ | |
| SHIMANO SHADOW RD+ | – | ||
| Double servo | – | ||
| SHADOW ES | – | ||
| Applicable derailleur hanger | SHIMANO MTB type | Direct attachment (conventional) | – |
| Direct mount | – | ||
| SHIMANO ROAD type | Direct attachment (conventional) | ✔ | |
| Direct mount | ✔ | ||
| UDH standard | ✔ | ||
| Max. front difference | 16T | ||
| Total capacity | 37T | ||
| 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 | 11T | ||
| Screws material | Stainless steel | ||
| Sunken type pulley screw | ✔ | ||
| Bracket | Material | Aluminum | |
| Finish | Anodized | ||
| B-axle | Hollow axle | ✔ | |
| Material | Aluminum | ||
| Finish | Anodized | ||
| B-axle 2 | Hollow axle | ✔ | |
| Material | Aluminum | ||
| Finish | Anodized | ||
| Bracket body | Material | Aluminum | |
| Finish | Painted | ||
| P-axle | Material | Aluminum | |
| Finish | Plated | ||
| Plate body | Material | CFRP | |
| Finish | Painted | ||
| Outer link | Material | Aluminum | |
| Finish | Anodized | ||
| Inner link | Material | CFRP | |
| Finish | – | ||
| Outer plate | Material | Carbon | |
| Finish | Painted | ||
| Inner plate | Material | Carbon | |
| Finish | Painted | ||
| Stroke adjusting screw | Material | Aluminum | |
| Finish | Anodized | ||
| Di2 connectivity wired | Di2 shifting | ✔ | |
| Di2 connectivity wireless | Di2 shifting | ✔ | |
| Bluetooth® LE | Cycling power | – | |
| ANT+ | Bicycle power | – | |
| Bluetooth® LE custom (*1) | Adjust mode information | ✔ | |
| Di2 battery level | ✔ | ||
| Gear position | ✔ | ||
| SHIMANO E-BIKE SYSTEMS data items (*3) | ✔ | ||
| Compatible with E-TUBE RIDE | ✔ | ||
| Compatible with E-TUBE PROJECT | ✔ | ||
| ANT private (*2) | Adjust mode information | ✔ | |
| Di2 battery level | ✔ | ||
| Gear position | ✔ | ||
| 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 | ✔ | ||
| Power supply | Built-in battery | – | |
| Wired | ✔ | ||
| Charging port | ✔ | ||
| Charging cable | EW-EC300 | ||
| Average weight (g) | 215 | ||
| Note *1 Compatible with a Bluetooth LE cycle computer and smartphone/tablet but not freely open profile. *2 Compatible with ANT+ cycle computer but not freely open profile. *3 Will be shown only when connected to SHIMANO E-BIKE SYSTEMS bike. | w/o Bracket spec. available | ||
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