Specifications:

• Shell Width:

  • 68mm: This kit is designed to convert American-style bottom bracket shells with a width of 68mm, typically found on vintage, cruiser, and BMX bicycles.

• Spindle Type:

  • Euro: The spindle type refers to compatibility with European bottom bracket standards, specifically designed for use with English-threaded bottom bracket systems. The adapter allows you to use a Euro-style spindle in an American bottom bracket shell.

• Cup Material:

  • Alloy: The cups are made from high-quality alloy, which is lightweight, durable, and resistant to corrosion. This ensures long-lasting performance without adding significant weight to the bike.

• Threading Interface:

  • American to Euro: The adapter converts an American (also known as "one-piece" or "Ashtabula") bottom bracket shell to a Euro (or English-threaded) bottom bracket. This allows the use of modern threaded bottom brackets, which are more common and offer improved performance compared to the older 1-piece crank setups.

• Color:

  • Silver: The adapter comes in a sleek silver finish, providing a clean and modern aesthetic to complement most bicycle frames.

• Conversion Function:

  • Converts 68mm American B.B Shell to an English Threaded Euro B.B: This conversion adapter enables the use of Euro bottom brackets on bicycles that originally have an American-style bottom bracket shell. It provides greater versatility by allowing you to upgrade or modify your bike’s drivetrain with a more widely available and often lighter Euro bottom bracket system.

Brand:

• Alta: Alta is known for producing high-quality bicycle components, particularly for lowrider, cruiser, and vintage-style bicycles. They specialize in parts that enhance both the performance and appearance of classic bikes.

Applications:

• Vintage Cruisers and BMX Bikes: Ideal for those who wish to modernize their older bikes with a more common Euro bottom bracket, especially on bikes originally designed for 1-piece cranks.
• Custom Builds: Often used in custom bicycle builds where riders prefer a Euro-style crank system for better performance or a wider selection of crankset options.

Advantages:

• Compatibility: This adapter increases the compatibility of your American-style bike with a wider range of cranksets and bottom brackets by converting it to the more modern Euro (English-threaded) standard.
• Lightweight: The alloy material keeps the adapter lightweight, ensuring that it doesn’t add unnecessary weight to the bicycle, which is particularly important for performance-oriented riders.
• Durability: Made from high-quality materials, the adapter ensures a secure fit and durability for long-term use.