Black Bearing B5 BSA 68/73 Bottom Bracket for DUB (28,99 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 BSA threading bottom bracket interface and it's compatible with Sram and Truvativ DUB spindle cranksets. 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
• Cup installation : Threaded in a BSA Frame
• Frame compatibity : with BSA Thread and 68/73 mm width
• Crankset compatibility :
  - DUB 28,99 mm (type Truvativ, Sram)
• Bearing quality :
  - B5
  - B5 Inox
  - Céramic
• Colour : Black
• Mounting key delivered

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