Black Bearing B5 PF46 68/73 Bottom Bracket for 24 mm and GXP (22/24 mm) spindle

Black Bearing is a famous manufacturer of high quality bearing dedicated to bicycle and urban sports. This bottom bracket fit all frames with Press-Fit 46 mm (PF30) bottom bracket interface and it's compatible with both 24 mm and Sram GXP spindle cranksets wich diameter is 22/24 mm. Each Black Bearing bottom bracket is available in 3 different bearing quality : B5 Bearing, B5 Stainless Bearing or Ceramic Bearing.

Features

• Cups material : Machined aluminium
• Frame compatibity : Press-Fit 46 mm (PF30)
• BBlock Technology : the bottom bracket is threaded in 2 parts for better alignement
• Less noise, better performances, easier bearing replacement
• Bottom bracket width : 68 to 73 mm
• Crankset compatibility :
  - 24 mm diameter spindle (Shimano, Race Face, Rotor, FSA)
  - GXP 22/24 mm spindle thanks to the adapter that comes with the BB (type Truvativ, Sram)
• Bearing quality :
  - B5
  - B5 Inox
  - B5 Ceramic
• Colour : Black
• Shimano Hollowtech, Race Face or Sram Spanner needed for cup installation

Bearing features

• Seal « 2RS » : Bearing with rubber seal on both sides that provides a better seal with optimized rolling friction
• Rectified Ball bearing groove to reduce friction and increase life time
• High quality inner lube
• High quality ball bearing (ABEC 5)
• Ball bearing reatainer: steel cage