Black Bearing bottom bracket steel bearing PressFit 46 68 - 73 mm Shimano Hollowtech II 24 mm spindle and GXP adapter included BB-46-68/73-24-B5

BLACKBEARING BB-46-68/73-24-B5 Bottom Bracket – 46 mm (68/73 mm, 24 mm & GXP)

The BLACKBEARING BB-46-68/73-24-B5 is a high-quality sealed press-fit bottom bracket designed for 46 mm shell systems. It is compatible with both 24 mm Shimano-style cranksets and SRAM GXP systems, providing smooth operation and long-lasting durability for road and MTB use.

Key features

• High-quality BLACKBEARING bottom bracket
• 46 mm press-fit system
• Compatible with 68 mm (road) and 73 mm (MTB) shell widths
• Compatible with 24 mm Shimano and SRAM GXP crank spindles
• Sealed cartridge bearing system
• Low rolling resistance
• Durable and reliable construction
• Suitable for road and MTB applications

Technical specifications

Compatibility

• 46 mm press-fit frame standards
• 68 mm road and 73 mm MTB bottom bracket shells
• 24 mm Shimano Hollowtech II-type cranksets
• SRAM GXP cranksets
• Not compatible with 30 mm spindle systems

In practice

The BLACKBEARING BB-46-68/73-24-B5 bottom bracket provides a durable and stable interface between frame and crankset. Its sealed bearings protect against contamination, ensuring smooth pedaling performance and long service life in both road and off-road conditions.