The CeramicSpeed BSA DUB bottom bracket impresses with its design. It allows you to connect a 29 mm axle, such as those from SRAM, with a narrow diameter and a 68 mm wide threaded bottom bracket shell. The bearings are mounted into the bearing cups, which are then screwed into the bottom bracket shell. These bearings are either standard or coated. Both feature super round, super smooth CeramicSpeed balls made from hardened steel. The coated version has a metallic coating on the raceways, making them even harder and smoother, resulting in a longer lifespan and reduced resistance. CeramicSpeed standard bearings typically have a friction resistance of 0.3-0.4 watts per set. This represents a 75% reduction in resistance compared to standard bottom brackets. This is due to bearings that are 100% smoother and 15% harder than ceramic competitors. The bearings last at least three times longer than other bearings.

• Weight: 81 g
• Details:

• Highest quality / reduced friction / lighter and smoother operation
• 3-5 times longer lifespan compared to standard bearings
• Performance savings with a complete CeramicSpeed upgrade of 10-16 watts
• Bearings: CeramicSpeed ceramic grade 3
• Handmade in Denmark

• Design: Hollow axle
• Frame compatibility: BSA
• Purpose: Road bike bottom bracket
• Design: Screwed bearing cups
• Axle interface: DUB (28.8 mm).