Shimano Crank Left Cover Black Oxide Alloy Steel

Description

Product Overview

The Shimano left crank lock cover is a premium bicycle component designed to protect and secure the left side of your crankset. Constructed from high‑grade alloy steel with a black‑oxide exterior finish, it offers exceptional resistance to corrosion and wear. The round head and hexagonal fastener type ensure a snug, reliable fit, while the bicycle‑specific UNC thread provides precise alignment for optimal performance.

Usage

This lock cover is ideal for road, mountain, and hybrid bikes where drivetrain reliability is essential. Install it during routine maintenance or after a crash to safeguard the crank spindle and maintain smooth power transfer. Cyclists of all skill levels benefit from the added durability and ease of installation.

Why Choose Us

Choosing Shimano means selecting a brand trusted by professional and recreational cyclists worldwide. Our lock cover meets stringent manufacturer standards, offering a Grade 2 hardness and a maximum shear strength of 1140 N/mm². Each piece undergoes rigorous quality checks to ensure consistent performance and long‑term reliability.

Key Features

• Premium alloy steel construction with black‑oxide finish for corrosion resistance
• Round head and hex fastener for easy installation and secure fit
• Bicycle‑specific UNC thread ensures precise alignment
• Maximum shear strength of 1140 N/mm² for high torque applications
• Lightweight design at only 0.32 oz, minimizing added weight

FAQ

Is this lock cover compatible with all Shimano cranksets?

It is designed for Shimano cranksets that use the standard left‑side lock cover thread pattern, including models FC‑6800 and FC‑5800.

Can I install the cover myself?

Yes, the hex head allows for simple installation with a standard hex key. Ensure the thread is clean before tightening.

What maintenance is required?

Periodically check the fastener for tightness and clean the surface to prevent debris buildup. Re‑apply a light coat of anti‑corrosion lubricant if needed.

Does the black‑oxide finish affect the bike’s aesthetics?

The sleek black‑oxide coating provides a subtle, professional look that complements most bike color schemes.

Is this product covered by a warranty?

Shimano offers a limited warranty against manufacturing defects for this component.