Specifications

• Length: 175mm

  • This crank arm has a length of 175mm, ideal for riders who need greater leverage for enhanced pedal power. It provides increased torque, allowing for better acceleration and hill-climbing capabilities.
  • Longer crank arms are typically recommended for taller riders or those with longer leg spans, as they offer more efficient power transfer while pedaling.

• Spindle Type: Square Taper JIS (Japanese International Standard)

  • Designed to fit Square Taper JIS bottom brackets, this crank arm is built for compatibility with a broad range of bottom bracket systems. Square Taper JIS is one of the most commonly used bottom bracket types, recvintagenized for its secure fit and low maintenance requirements.
  • The Square Taper JIS standard is known for providing a solid and reliable connection between the crank arm and spindle, reducing the risk of wobbling or loosening over time.

• Design: Horizontal Square

  • Featuring a Horizontal Square design, the crank arm offers a secure, robust attachment to the spindle. This orientation optimizes force distribution and helps prevent the crank arm from loosening with extended use.
  • The horizontal alignment also ensures the crank arm sits flush with the bottom bracket, providing an efficient power transfer from pedal to wheel.

• Size: Left Arm

  • This crank arm is specifically the left-side component, making it an economical choice for riders who need only a left-side replacement rather than an entire crankset.
  • A separate left-arm replacement is ideal for maintenance, allowing riders to match or replace the left arm without buying the complete set.

• Material: Alloy

  • Made from high-quality alloy, this crank arm combines strength with lightweight construction. Alloy materials are chosen for their excellent strength-to-weight ratio, which ensures the arm can withstand regular stress without adding unnecessary weight.
  • Alloy is also naturally resistant to rust and corrosion, making it a suitable choice for all-weather riding and longevity.

• Color: Black

  • The black finish gives the crank arm a sleek, modern appearance that complements various bike frames and styles. This color is both functional and aesthetic, adding a refined, understated look to the bike while hiding signs of wear and scratches more effectively than lighter finishes.
  • Black alloy is popular among cyclists who prefer a subtle, durable finish that enhances the bike's overall look without compromising performance.

• Brand: AltaLine

  • Known for high-quality cycling components, AltaLine focuses on providing durable, reliable parts that meet the needs of various riding styles, from commuting to mountain biking. Their parts are designed with precision and compatibility in mind, making them a trusted choice among cyclists for replacements and upgrades.

Compatibility

• Bottom Bracket Compatibility:

  • The crank arm is compatible with Square Taper JIS bottom brackets, a common standard for many types of bicycles, including road, mountain, hybrid, and commuter bikes.
  • As long as the bottom bracket follows the Square Taper JIS standard, this crank arm will install securely, offering a stable and dependable fit for effective power transfer.

• Bike Types:

  • Road Bikes: Suitable for classic and vintage road bikes, where a smooth pedal stroke and efficient power transfer are essential.
  • Mountain Bikes: Ideal for off-road bikes requiring durability and a stable attachment to handle rugged terrain.
  • Hybrid and Commuter Bikes: This crank arm’s design and size make it an excellent choice for daily commuting, providing strength for various riding conditions.
  • Touring and Gravel Bikes: The length and material are also suited for touring and gravel bikes, where durability and comfort are key.

Key Benefits

• Durability and Lightweight: Constructed from alloy, this crank arm is built to handle regular use without compromising on weight. Its lightweight construction enhances pedal efficiency while maintaining high strength for long-term use.
• Enhanced Power Transfer: The 175mm length is ideal for riders seeking more leverage and better power transfer, especially useful for climbing and accelerating.
• Corrosion Resistance: Alloy’s natural resistance to corrosion and rust, combined with the black finish, makes this crank arm resilient against the elements, ensuring a long lifespan.
• Sleek Black Finish: The black color not only offers a polished, professional look but also minimizes the visibility of wear, making it a practical choice for regular riders who prioritize aesthetics and functionality.
• Cost-Effective Replacement: As a left-arm-only option, this crank arm provides an economical solution for those needing a single replacement part without purchasing an entire set.

Considerations

• Single Arm Component: This crank arm is for the left side only. Riders should ensure that the right crank arm is compatible in terms of length and interface for optimal balance.
• Professional Installation Recommended: Installing crank arms requires specific tools and torque settings to avoid over-tightening or stripping threads. It’s advisable to have this component professionally installed to ensure correct fitting.