SRAM GXP BlackBox Bicycle Bottom Bracket

Exceeds the needs of even the most demanding riders. They offer a performance advantage over traditional bottom bracket bearings that's almost too great to believe.

Key Features:

• Besides being 10% lighter than standard bearings, ceramic bearings require an astonishing 78% less energy than the next most efficient BB on the market.
• Ceramic bearings are more resistant to dirt and moisture and, when properly maintained, will outlast and outperform any other BB on the market.
• They utilize a lighter-than-normal seal along with stainless steel races and high-polish cups and have no equal when it comes to helping you reach terminal velocity more quickly and easily than ever before.
• Weight: 105g (Manufacturer claimed).
• Material: Ceramic Balls/Stainless Steel Races.
• Compatibility: GXP Cranksets.
• Availability: English threading.