Shimano ULTEGRA RD-R8150 Di2 12速リアディレイラー 取扱説明書

1.製品オーバーview

The Shimano ULTEGRA RD-R8150 Di2 12-Speed Rear Derailleur is designed for precise and efficient electronic shifting. This component integrates a wireless unit, charger, and switch into a compact design, offering compatibility with a wide range of cassettes (11-28, 11-30, and 11-34 teeth).

主な機能は次のとおりです。

• Integrated wireless unit, charger, and switch for a streamlined setup.
• Wider range capacity, supporting up to a 34-tooth low sprocket.
• LED status indicator for battery level, pairing status, and adjustment mode.
• Automatic adjustment for optimal shifting performance.

図1: 前面 view of the Shimano ULTEGRA RD-R8150 Di2 12-Speed Rear Derailleur, showcasing its compact design and Ultegra branding.

図2: 角度付き view of the Shimano ULTEGRA RD-R8150 Di2 12-Speed Rear Derailleur, highlighting the pulley cage and electronic components.

図3：側面 view of the Shimano ULTEGRA RD-R8150 Di2 12-Speed Rear Derailleur, showing its profile および取り付けポイント。

2. セットアップとインストール

Installation of the RD-R8150 rear derailleur involves mounting it to the bicycle frame and connecting the necessary electronic cables. This derailleur is designed for straightforward installation, typically requiring standard bicycle tools for secure attachment and cable routing.

2.1 取り付け

1. Ensure the derailleur hanger on your bicycle frame is clean and properly aligned.
2. Attach the RD-R8150 derailleur to the hanger using the provided mounting bolt. Tighten to the manufacturer's specified torque.

2.2 電子接続

1. Connect the Di2 electronic cable from the main battery/junction box to the port on the rear derailleur. Ensure a secure connection.
2. Route the cable neatly along the frame, securing it with cable ties or internal routing as appropriate for your bicycle.

2.3 初期設定

After physical installation, perform initial setup and pairing with your Di2 shifters. Refer to the comprehensive Shimano Di2 system manual for detailed pairing and adjustment procedures. The integrated wireless unit simplifies this process.

3. 操作手順

The Shimano ULTEGRA RD-R8150 Di2 rear derailleur operates electronically, providing precise and consistent gear changes with minimal effort.

3.1 ギアチェンジ

To shift gears, simply press the appropriate button on your Di2 shifter. The derailleur will execute the shift quickly and accurately. The system is designed to automatically adjust its position for optimal chain line and prevent chain rub.

3.2 LEDステータスインジケーター

The integrated LED indicator provides important information:

• バッテリー残量: Indicates the remaining battery charge. Consult your Di2 system manual for specific light patterns and their corresponding charge levels.
• ペアリングステータス: Shows if the derailleur is successfully paired with other Di2 components.
• 調整モード: Illuminates when the system is in adjustment mode, allowing for fine-tuning of gear positions.

4. メンテナンス

Regular maintenance ensures the longevity and optimal performance of your Shimano ULTEGRA RD-R8150 Di2 rear derailleur.

4.1 クリーニング

• Keep the derailleur body and pulley wheels clean from dirt and grime. Use a soft cloth and mild detergent, avoiding harsh chemicals.
• Regularly clean your bicycle chain and cassette to prevent excessive wear on the derailleur.

4.2 潤滑

• Apply a small amount of bicycle-specific lubricant to the pivot points of the derailleur and the pulley wheel bearings periodically.
• Avoid over-lubrication, which can attract dirt.

4.3 バッテリーの充電

Monitor the battery indicator and charge the Di2 system as needed. The charging port is integrated into the derailleur for convenience. Use only the official Shimano Di2 charger.

5。 トラブルシューティング

If you experience issues with your RD-R8150 Di2 rear derailleur, consider the following common troubleshooting steps:

• シフト応答なし: Check the battery level. Ensure all electronic cables are securely connected.
• Inaccurate Shifting: The system may require fine-tuning. Enter adjustment mode (refer to your Di2 system manual) and make small adjustments. Ensure the derailleur hanger is not bent.
• LED インジケーターの問題: If the LED shows an error code, consult your full Shimano Di2 system manual for the specific meaning and recommended action.

For persistent issues, it is recommended to consult a certified Shimano service center or an experienced bicycle mechanic.

6. 仕様

7. 保証とサポート

For warranty information and technical support, please refer to the official Shimano website or contact your authorized Shimano dealer. Keep your proof of purchase for warranty claims.

Official Shimano Webサイト： シマノ