ZTTO T47-30 Aluminum Alloy Road Bike 30mm Inner Diameter Threaded Bearing Bottom Bracket - T47-30X External

• The threaded design ensures a secure and straightforward installation process, providing a reliable connection between the bottom bracket and your bike frame
• Engineered from high-quality aluminum alloy, which ensures durability and performance for your cycling needs
• Every bottom bracket empowers every rider with opportunities to save energy or ride faster

Specifications:

• Material: aluminum alloy
• Outer diameter: 47mm
• Inner diameter: 30mm
• Bottom bracket: internal 86/92mm, external 68/73mm