TOOPRE Integrated Hollow Crankset Dust Cover, CNC Aluminum Alloy Crank Arm Cap with Anodized Laser Totem Design for MTB and Road Bikes

The TOOPRE Integrated Hollow Crankset Dust Cover is a lightweight aluminum alloy accessory designed for integrated hollow cranksets on mountain bikes and road bikes. Combining protective sealing with a decorative finish, it adds a clean visual detail to the crank area while helping improve the overall look of the bike.

Made from high-strength aluminum alloy, this crank dust cover features CNC fine turning, integrated molding, and an anodized surface treatment for a smooth finish, durable texture, and multi-color appearance. The product images also highlight laser totem patterns, including chrysanthemum and auspicious cloud styles, offering multiple visual options for riders who want a more personalized setup.

According to the provided material, the cover is supplied with 18mm and 20mm rubber rings and is designed to fit common brand integrated hollow crank apertures from 21–23mm. With its compact structure, rounded shape, and dual role in sealing and decoration, it is a practical finishing component for everyday bike builds and upgrades.

Key Selling Points

• Designed for integrated hollow cranksets
  Suitable for use on MTB and road bike cranksets with compatible integrated hollow openings.
• Aluminum alloy construction
  Made from high-strength aluminum alloy for a balance of light weight, strength, and corrosion resistance.
• Sealing and decorative function
  Offers both dust cover utility and a clean finishing touch for the crank area.
• CNC fine turning and integrated molding
  Smooth machining and rounded detailing help create a refined appearance.
• Anodized finish with laser totem patterns
  Surface anodizing and laser graphic treatment provide texture, color, and visual character.
• Includes 18mm and 20mm rubber rings
  Supports compatibility with 21–23mm integrated hollow crank apertures as shown in the provided images.
• Multiple colors and pattern options
  Available in a range of finishes to match different bike styles and component colors.

Material, Finish & Design

This dust cover is made from aluminum alloy and described in the provided materials as lightweight, hard, corrosion-resistant, and more durable than plastic covers. The compact, rounded structure is designed to sit neatly in the crank area without adding bulk.

Manufacturing and finish details shown in the images include:

• CNC integrated molding
• CNC fine turning
• Anodized surface treatment
• Laser totem detailing
• Smooth and meticulous workmanship

The combination of machining and surface finishing gives the part a more polished look while maintaining a practical bike-component aesthetic.

Compatibility & Color Options

Based on the provided product information, this crank dust cover is equipped with:

• 1 × 18mm rubber ring
• 1 × 20mm rubber ring

It is described as compatible with common brand integrated hollow crank apertures from 21mm to 23mm.

The images also show multiple decorative styles and color options, including:

• Black Chrysanthemum
• Black Auspicious Cloud
• Red Chrysanthemum
• Red Auspicious Cloud
• Blue Chrysanthemum
• Blue Auspicious Cloud
• Colorful Chrysanthemum
• Colorful Auspicious Clouds

These options allow riders to add a subtle visual accent to the crankset area while keeping the bike build coordinated.

Product Specifications

Packaging & Ideal Use

The provided images show TOOPRE brand self-sealing bag packaging, making the product easy to store, display, and organize with other bike accessories.

This dust cover is suitable for riders who want:

• A clean finishing detail for integrated hollow cranksets
• A lightweight aluminum upgrade over basic plastic-style covers
• A small part that adds both decorative style and sealing function
• Color coordination for MTB, road, or custom bike builds

What’s Included

• 1 × TOOPRE Integrated Hollow Crankset Dust Cover
• 1 × 18mm Rubber Ring
• 1 × 20mm Rubber Ring