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Total Length: 113mm
This is the length of the axle itself, measured from the left side to the right side.
Overall Length: 134mm
This measurement includes the length of the axle and the attached square nuts.
Left Side Length: 30.5mm
This is the length of the extension on the left side of the axle that fits into the left crank arm.
Right Side Length: 30.5mm
This is the length of the extension on the right side of the axle that fits into the right crank arm.
Center Length: 52mm
The length of the central section of the axle, which provides the necessary spacing for crank arm installation.

Style: Nut
Designed with a square nut style for a secure fitting with crank arms.

Material: Steel or Alloy (typically steel, unless specified otherwise)
Ensures durability and strength, making it suitable for various cycling conditions.

Color: Black
The black finish offers a sleek appearance and helps resist corrosion.

Cotterless Design:
This design facilitates easier installation and removal of the crank arms, making maintenance more accessible.
Compatibility:
The square nut style ensures compatibility with various crankset systems designed for cotterless axles.
Durable Construction:
Built to withstand the demands of cycling, ensuring long-lasting performance.

Bicycle Types:
Suitable for a wide range of bicycles, including road bikes, mountain bikes, and hybrids that utilize cotterless bottom brackets.
Installation:
Designed to fit securely in the bottom bracket, allowing for efficient power transfer from the pedals to the bike's drivetrain.

Regular Inspections:
Regularly check for wear or loosening to ensure safe and efficient performance.
Cleaning:
Clean the axle periodically to prevent dirt buildup, which can hinder functionality.
Installation Guidance:
Ensure proper torque settings when installing crank arms to avoid damage to the axle or crankset.

Bottom Bracket Shell Width: Ensure the bike’s bottom bracket shell width matches the 68mm standard, as this axle length is designed for that shell size.
Square Taper Crankset: The crankset should be square taper, as this axle works with this type of crank interface.
Frame and Chainline Requirements: Depending on the bike’s frame geometry and chainline needs, 119mm may be the appropriate length. Verify the axle length in relation to the bike’s chainline for proper gear shifting.