Birzman Crank Arm Cap Tool II
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Product Information
Full details
The Birzman Crank Arm Cap Tool II is designed for cyclists and mechanics who need to reliably remove and install crank arm caps. Its primary benefit is its universal compatibility with major crankset brands, ensuring a secure fit and preventing damage during maintenance. A potential caveat is the need for a separate 6mm hex wrench for operation. This tool simplifies crankset service with its durable construction and ergonomic design.
All features
| Model Part Number | BM18-CAT-2 |
|---|---|
| Brand | Birzman |
Extended Product Information
FAQs
What is the primary function of the Birzman Crank Arm Cap Tool II?
Its primary function is to remove and install crank arm caps on compatible Shimano® and SRAM®/RaceFace® cranksets without causing damage.
Do I need to buy a separate hex wrench?
Yes, the tool features 6mm hex holes and requires a standard 6mm hex wrench for operation, which is not included.
Is this tool compatible with all cranksets?
It is designed for specific Shimano® (Hollowtech II™ / 8-notch) and SRAM®/RaceFace® (16mm internal hex) cranksets. Always check your crankset's specifications for compatibility.
What is the tool made of?
The tool is made from durable, CNC machined 6061 aluminum.
Can this tool damage my crankset?
When used correctly, the tool is designed to prevent damage. Incorrect use or excessive force could potentially damage components.
How should I clean and store the tool?
Clean with a dry or slightly damp cloth and store in a dry environment to maintain its condition.
Troubleshooting
Tool does not fit crank arm cap
Ensure you are using the correct side of the tool for your specific crankset (Shimano® 8-notch or SRAM®/RaceFace® 16mm internal hex). Verify compatibility for your crankset model.
Crank arm cap is stuck or difficult to turn
Apply a small amount of penetrating oil around the cap and allow it to sit for a few minutes. Use a longer 6mm hex wrench for increased leverage if needed, but apply force steadily to avoid damage.
Tool feels loose on the crank arm cap
Ensure the tool is fully seated within the notches or hex interface of the cap. Check for any debris or damage within the cap that might be preventing a secure fit.
Pros and Cons
Pros
- Wide compatibility with Shimano and SRAM/RaceFace cranksets
- Durable and lightweight aluminum construction
- Designed to prevent damage to crank arm caps
- Ergonomic handle for comfortable use
- Precise fit ensures efficient operation
Cons
- Requires a separate 6mm hex wrench
- Specific to crank arm cap removal/installation only
- May not fit highly specialized or older crankset designs
Setup, Compatibility & Care
Setup:
- Identify the type of crank arm cap on your bicycle's crankset (Shimano® 8-notch or SRAM®/RaceFace® 16mm internal hex).
- Select the corresponding side of the Birzman Crank Arm Cap Tool II.
- Insert the appropriate end of the tool into the crank arm cap.
- Using a 6mm hex wrench, turn the tool counter-clockwise to remove the cap or clockwise to install it.
Compatibility:
- Compatible with Shimano® Hollowtech II™ and other 8-notch crank arm caps.
- Compatible with SRAM®, RaceFace®, and other 16mm internal hex crank arm caps.
Care:
- Clean the tool with a dry or slightly damp cloth after use.
- Store in a clean, dry place to prevent corrosion.
- Avoid dropping the tool, as the aluminum construction, while durable, can be dented.