Drivetrain & Transmission

Specifications:

• Shell Width:

  • 68mm: Converts American-style bottom bracket shells (68mm wide), common on vintage, cruiser, and BMX bikes.

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• Spindle Type:

  • Euro: Compatible with European bottom bracket standards for English-threaded systems. Use a Euro spindle with an American bottom bracket shell.

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• Cup Material:

  • Alloy: Made from lightweight, durable, and corrosion-resistant alloy for lasting performance without extra weight.

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• Threading Interface:

  • American to Euro: Converts American bottom bracket shells to Euro (English-threaded), allowing for modern, high-performance bottom brackets over the older one-piece cranks.

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• Color:

  • Black: Finished in sleek black, adding a clean, modern look to complement most bike frames.

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• Conversion Function:

  • Converts 68mm American B.B Shell to English Threaded Euro B.B: Allows the use of Euro bottom brackets on bikes with American-style bottom brackets, enabling upgrades with lighter and more versatile Euro components.

Brand:

• PRO+: Known for high-quality bike parts, Alta specializes in components for lowrider, cruiser, and vintage bicycles that enhance both performance and style.

Applications:

• Vintage Cruisers and BMX Bikes: Perfect for updating older bikes with a more common Euro bottom bracket, especially for bikes originally designed for 1-piece cranks.
• Custom Builds: Ideal for custom builds where riders prefer a Euro-style crank system for improved performance or more crankset options.

Advantages:

• Compatibility: Expands compatibility by converting American-style bikes to the modern Euro standard, allowing more crankset and bottom bracket options.
• Lightweight: Made from alloy, this adapter is lightweight, avoiding unnecessary weight on the bike.
• Durability: Built with high-quality materials to ensure a secure fit and long-term use.