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General| Model | RD-R7150 |
|---|---|
| Compatibility | 12-speed |
| Mount | Direct Mount |
| Pulley Cage | Short |
| Max. Front Difference | 16T |
| Total Capacity | 37T |
| Max. Low Sprocket | 34T |
| Min. Low Sprocket | 28T |
| Max. Top Sprocket | 11T |
| Min. Top Sprocket | 10T |
| Rear Speeds | 12 |
| Compatible Chain | 12-speed |
Manual for professional mechanics; warns untrained users against self-installation.
Emphasizes reading the manual thoroughly and following safety instructions.
Explains the classification system for safety instructions (DANGER, WARNING, CAUTION).
Precautions for charging and handling the battery to prevent fire and damage.
Safe handling of the charging cable to avoid electric shock and fire.
Safety measures for the rear derailleur to prevent damage or hazards.
Follow instructions, use genuine parts, and wear eye protection during maintenance.
Do not use the battery if any abnormalities like leakage or deformation occur.
Hold charging cable by the plug to prevent fire or electric shock.
Avoid subjecting the rear derailleur to strong shocks and damage.
Keep away from children and do not leave charging cable connected during maintenance.
Warning regarding the use of compatible dedicated batteries.
How to switch between battery level, shift mode, adjustment, and pairing modes.
Steps for wired system pairing, including preparing the battery and connecting components.
Pressing the function button to initiate pairing and checking LED feedback.
Using E-TUBE PROJECT for wireless system pairing of derailleur and levers.
Steps to recover the rear derailleur from RD protection function.
How to secure the rear derailleur using the fixing screw and B-tension stop.
Steps to remove the bracket axle plate for direct mount installation.
Final steps for installing the rear derailleur with the bracket axle.
Pushing in the electric wire firmly with the TL-EW300 tool.
Initial step to adjust the B-screw by shifting to the smallest chainring and largest sprocket.
Adjusting the gap between the largest sprocket and guide pulley based on cassette size.
Switching the system to adjustment mode by pressing the function button.
Moving the guide pulley towards the largest sprocket to contact the fourth gear.
Potential problems if low/high limits are not properly adjusted.
Guide to check information for problems with the rear derailleur.
Diagnosing and fixing problems with gear shifting performance.
Troubleshooting steps for when the system cannot be charged.
What to do if the battery and derailleur become abnormally hot during charging.
Reasons and solutions for the LED flashing red during charging.
Troubleshooting steps when the LED flashes red during pairing.
Causes and solutions when the LED lights red.
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