Specifications

• Ball Retainer Size: 5/16 inch

  • This size refers to the diameter of the ball bearings used in the bottom bracket.
  • Ball Retainer Count: 9 balls, which are typically arranged in a circular pattern to provide smooth rotation.

• Shell Width: 68mm

  • This is the standard width for many road and mountain bike bottom brackets.
  • Ensures compatibility with frames designed for 68mm bottom bracket shells.

• Interface: 24 TPI (Threads Per Inch)

  • Indicates the threading standard used in the bottom bracket.
  • This is a common English (BSA) threading, compatible with a variety of bike frames.

• Cup Type: Press Fit 51mm

  • The bottom bracket cups are designed to fit directly into the frame's bottom bracket shell.
  • A press-fit design allows for easier installation and a more secure fit.

Material and Finish

• Material: Steel

  • Provides durability and strength, ensuring long-lasting performance under various riding conditions.
  • Steel construction is common for bottom brackets, offering good resistance to wear.

• Color: Black

  • The black finish enhances corrosion resistance and adds aesthetic appeal to the bike.
  • Black-plated surfaces also reduce friction, contributing to smoother operation.

Compatibility

• Bikes: Suitable for a wide range of bicycles, including:
  • Road Bikes
  • Mountain Bikes
  • Hybrid Bikes
  • Touring Bikes
  • BMX Bikes (depending on specific frame design)

Installation

• Installation Method: Press-fit
  • Requires a specific press tool for proper installation into the bottom bracket shell.
  • Ensure alignment during installation to avoid damaging the frame or the bottom bracket.

Maintenance

• Regular Inspection: Check for any signs of wear or noise during operation. Listen for creaking sounds which may indicate worn bearings.
• Cleaning: Regular cleaning of the external parts and periodic lubrication of the bearings can enhance performance and longevity.