SRAM Apex XPLR Rear Derailleur - 12-Speed
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Product Information
Full details
The SRAM Apex XPLR Rear Derailleur is designed for cyclists seeking a simplified, versatile 1x drivetrain. It offers smooth, reliable shifting across a wide gear range with excellent chain retention, ideal for gravel, adventure, or road riding. A potential consideration is its specific compatibility with 12-speed Apex or Eagle shifters. Key features include X-ACTUATION for precise shifting, an integrated clutch for chain stability, and X-HORIZON design to prevent ghost shifting.
All features
| Model Part Number | 00.7518.177.000 |
|---|---|
| Brand | SRAM |
Extended Product Information
FAQs
What is the maximum cassette size this derailleur can handle?
The SRAM Apex XPLR Rear Derailleur is designed to be compatible with cassettes up to a maximum of 44T.
Can I use this derailleur with an 11-speed shifter?
No, this derailleur is specifically designed for 12-speed systems and requires a 12-speed mechanical Apex or Eagle shifter.
What is the purpose of the 'XPLR' designation?
XPLR is SRAM's designation for their 1x-specific drivetrains focused on gravel, adventure, and exploration, emphasizing simplicity and capability.
Does the integrated clutch require maintenance?
The integrated clutch is generally low-maintenance and sealed. Regular cleaning of the derailleur and drivetrain components is recommended.
How does the X-HORIZON design benefit the rider?
The X-HORIZON design minimizes the horizontal movement of the parallelogram, reducing ghost shifting and ensuring more precise and consistent shifts, while also lowering the required shift force.
Can this derailleur be used with an electronic shifter?
No, this is a mechanical derailleur and is only compatible with SRAM 12-speed mechanical Apex or Eagle shifters.
What chain type should I use with this derailleur?
You should use a compatible 12-speed SRAM chain for optimal performance and durability.
Troubleshooting
Difficulty shifting into the largest cog
Check and adjust the low limit screw. Ensure the derailleur hanger is straight and the B-tension is correctly set.
Chain dropping off the smallest cog
Adjust the high limit screw. Verify that the derailleur hanger is straight.
Noisy chain or poor shifting under load
Check chain lubrication and wear. Ensure correct chain length and proper derailleur adjustment. Verify compatibility of components (shifter, cassette, chain).
Clutch feels loose or ineffective
The clutch mechanism is internal and generally sealed. If performance degrades significantly, it may indicate internal wear, and professional service or replacement might be necessary.
Ghost shifting or inconsistent shifts
Ensure shift cable is clean and not kinked. Re-adjust limit screws and cable tension. Check for play in the derailleur body or hanger.
Pros and Cons
Pros
- Simplifies drivetrain with 1x setup.
- Excellent chain security due to integrated clutch.
- Wide gear range suitable for diverse riding conditions.
- Quiet and fast shifting performance.
- Reduces ghost shifting for a more stable ride.
Cons
- Only compatible with 12-speed mechanical Apex and Eagle shifters.
- Requires a specific 1x setup, not suitable for multi-chainring systems.
- Maximum cassette compatibility is 44T, which may be limiting for some extreme uses.
Setup, Compatibility & Care
Compatibility:
- Speeds: 12-speed
- Shifters: Requires SRAM 12-speed mechanical Apex or Eagle shifters.
- Cassette: Compatible with cassettes up to a maximum of 44T.
- Chain: Use with a compatible 12-speed SRAM chain.
Setup:
- Mounting: Attach the derailleur to the rear derailleur hanger using the provided bolt.
- Cable Routing: Route the shift cable from the shifter to the derailleur, ensuring smooth bends.
- Limit Screws: Adjust the high and low limit screws to ensure proper chain movement between the smallest and largest cogs.
- B-Tension: Adjust the B-tension screw to set the correct gap between the upper pulley and the cassette cogs.
- Chain Length: Ensure correct chain length for optimal shifting across the full cassette range.
Care:
- Cleaning: Regularly clean the derailleur body, pulleys, and cage with a mild degreaser and a brush. Avoid high-pressure water.
- Lubrication: Keep the derailleur pivots lubricated. The clutch mechanism generally does not require lubrication.
- Inspection: Periodically check for bent derailleur hangers, worn pulley teeth, and excessive play in the cage or pivots.
- Chain Maintenance: A clean and properly lubricated chain will significantly prolong the life and performance of the derailleur.