Bike Crankset BB Axle 68-73mm Sealed Bearing Rainbow Finish

Rainbow Anodized Bike Crankset with BB Axle — 68-73mm Threaded

Upgrade your ride with this eye-catching hollow integrated aluminum alloy crankset featuring a stunning rainbow anodized finish. Engineered for mountain bikes and compatible with standard 68-73mm threaded bottom bracket shells, this crankset combines lightweight construction with smooth, sealed bearing performance — so every pedal stroke feels effortless.

Key Features

• Hollow One-Piece Design: Reduces overall weight without sacrificing rigidity, delivering better pedaling efficiency on every trail.
• Sealed Bearing System: High-quality sealed bearings ensure smooth, consistent rotation and a long service life, even in wet or dirty conditions.
• Rainbow Anodized Coating: Vibrant, durable anodized finish adds a personalized, head-turning style while protecting the aluminum from corrosion and wear.
• Wide Compatibility: Threaded BB axle design fits standard bike frames with 68–73mm bottom bracket shells — a common standard across mountain bikes.
• Precision Machined: CNC machining ensures a secure, precise fit that minimizes vibration and wobble during aggressive riding.

Specifications

What's in the Box

• 1 × Bike Crankset with BB Axle

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Learn more: Crankset

Frequently Asked Questions

Q: What bike frames is this crankset compatible with?

A: This crankset is designed for mountain bikes with standard threaded bottom bracket shells measuring 68–73mm in width. It uses a threaded fixed mounting system, which is one of the most common standards in mountain biking.

Q: Is the rainbow finish durable enough for trail riding?

A: Yes! The rainbow anodized coating is applied through an electrochemical process that bonds directly to the aluminum surface, making it resistant to scratches, corrosion, and general wear — even in demanding trail conditions.

Q: Does this crankset come with a bottom bracket?

A: The package includes 1 × Bike Crankset with BB Axle. Please verify your frame's bottom bracket shell compatibility (68–73mm threaded) before installation. If you need additional bottom bracket components, consult your local bike shop.

Q: How difficult is the installation?

A: The threaded fixed mounting design is straightforward for anyone with basic bike maintenance experience. A standard crank installation tool is recommended for proper torquing. If you're new to crankset installation, a professional bike mechanic can complete the job quickly.