Ceramicspeed Alpha T47/68 Sram Dub Gravel Bottom Bracket

Ceramic bottom bracket for a completely new riding experience.

The new generation of CeramicSpeed Alpha bottom brackets sets completely new standards for performance, durability and user-friendliness. Every element has been redesigned and optimised from the ground up. The aim was to develop a lighter, more durable bottom bracket without compromising on friction - while still simplifying the design.

The Alpha bottom bracket impresses with minimal frictional resistance. Precision ceramic balls in hardened, corrosion-resistant stainless steel bearing races ensure maximum efficiency and consistent performance with every pedal stroke. Optimised dust covers and seals reliably keep out dirt and moisture, allowing long distances to be covered without maintenance. This is backed up by a lifetime manufacturer's warranty.

Lightweight yet robust bearing shells and a slim tube reduce the overall weight without compromising on stability or durability. The simplified, uniform interface for balls and seals makes selection, installation and maintenance extremely easy and adapts effortlessly to all common bearing standards. The bottom brackets for 24 mm and 30 mm shafts have become 10% lighter. The specific cups for DUB shafts have been designed so that fewer spacers are now required during assembly.

• Low rolling resistance thanks to CeramicSpeed balls
• Hardened, corrosion-resistant stainless steel races
• Optimised seals and dust covers
• 500% higher protection against contamination without additional drag
• Lightweight cups and slim tube
• Simple installation & maintenance with standardised interfaces
• Lifetime manufacturer's warranty
• Handmade in Denmark

• Type: T47 (External)
• Bearing seat: threaded
• Diameter: 47 mm

• Product Name: CeramicSpeed Alpha Bottom Bracket - T47| DUB | T47-68-29
  
• Manufacturer: CeramicSpeed
  
• Item Code: CSP741873
  
• Activity: Cycling
  
• Material: Ceramic
  
• Usage bikesport: Road Bike, Allroad / Gravel
  
• Bottom bracket type: T47
  
• Bottom bracket axle profile: SRAM DUB
  
• Bottom bracket case width: 68 mm
  
• Bottom bracket construction: Bottom Bracket Cups
  
• Case diameter: 47mm
  
• Model year: 2026
  
• Color: Black
  
• Weight: 114g
  
• Weight Source: Manufacturer