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

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

The BLACKBEARING BB-46-68/73-24-S is a premium sealed press-fit bottom bracket designed for 46 mm frame shell standards. Compatible with both 24 mm Shimano-style cranksets and SRAM GXP systems, it features stainless steel bearings for enhanced corrosion resistance, smooth operation, and long-lasting durability.

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
• Stainless steel bearing technology
• Excellent corrosion resistance
• Smooth and efficient rotation
• Sealed construction for protection against dirt and moisture
• Suitable for road, gravel, MTB, and e-bike 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-S bottom bracket combines smooth performance with the added durability of stainless steel bearings. Its corrosion-resistant construction makes it particularly suitable for riders who frequently ride in wet, muddy, or demanding conditions while maintaining efficient power transfer and reliable long-term performance.