CeramicSpeed BB ALPHA for BBright Shimano Road

 

Danish-made flagship ceramic bottom bracket for BBright press-fit frames (46mm bore, 79mm asymmetric shell) paired with Shimano 24mm road cranksets. Grade-3 Silicon Nitride ceramic balls, hardened stainless-steel races, 500% moisture protection improvement, 99g, hand-built in Denmark with lifetime warranty.

 

BB ALPHA is CeramicSpeed's flagship bottom bracket line, engineered to outlast your frame. This model fits BBright press-fit frames paired with Shimano 24mm axle road cranksets, and is designed for road, triathlon, and track disciplines.

BBright is a proprietary press-fit BB standard developed by Cervélo, featuring a 46mm bore diameter and an asymmetric 79mm shell width. The asymmetric design provides additional space on the drive side for the bearing, improving stiffness and power transfer efficiency while optimising chainline alignment. While most commonly found on Cervélo frames, other frames sharing the same specification are also compatible.

The bearing core uses grade-3 Silicon Nitride (Si₃N₄) ceramic balls paired with hardened stainless-steel races. The ceramic balls offer an exceptionally smooth surface and far greater hardness than steel, resulting in ultra-low friction and outstanding longevity. The hardened stainless-steel races are inherently corrosion resistant — ideal for riding in Hong Kong's hot and humid conditions.

Protection is where BB ALPHA truly excels. Custom-engineered seals and precision dust covers were refined through 28 design iterations for optimal fitment, delivering 500% better moisture and contamination resistance than conventional designs. This dramatically extends bearing life, even through regular rain rides and bike washes.

Structurally, the cups feature optimised material and geometry for maximum strength at reduced weight, while a simplified spacer tube design uses fewer parts for quicker, more intuitive installation. Together, these changes achieve a 10% weight saving over the previous generation, bringing the net weight down to just 99g — one of the lightest options in its category.

Every BB ALPHA is hand-assembled and quality-checked at CeramicSpeed's factory in Holstebro, Denmark, and is backed by a lifetime warranty for ultimate peace of mind.

 

Key Features

• Ultra-Low Friction: Grade-3 Si₃N₄ ceramic balls with hardened stainless-steel races for dramatically lower drag than steel bearings
• 500% Moisture Protection: Custom seals and dust covers refined through 28 iterations to block water and contamination
• Corrosion Resistant: Hardened stainless-steel races resist rust — perfect for humid climates
• Ultra Lightweight: 99g net weight — 10% lighter than the previous generation through optimised cups and spacer tube
• Quick Installation: Simplified spacer tube with fewer parts for intuitive fitting
• Serviceable: Seals and dust covers are independently replaceable — no need to replace the entire unit
• BBright Press-Fit: Purpose-built for Cervélo's asymmetric shell for precise fitment
• Lifetime Warranty: Official CeramicSpeed lifetime warranty

In the Box

• BB ALPHA for BBright Shimano Road × 1
• UFO TECH All Round Bearing Grease 5ml × 1
• CeramicSpeed Decal × 1

Frame Compatibility

Frames using the BBright press-fit standard (46mm bore, 79mm asymmetric shell width), most commonly found on Cervélo frames.

⚠️ BBright is an asymmetric design and is not interchangeable with PF30, BB386EVO, or other press-fit standards. Please verify your frame's BB shell marking or consult the frame spec sheet before ordering to confirm BBright compatibility.

Crank Compatibility

All Shimano road cranksets with 24mm spindle: Dura-Ace, Ultegra, 105 — all generations, as well as other brands using a 24mm spindle diameter.

Recommended Accessories

• Bottom Bracket Tool Kit (installation tool set)
• CeramicSpeed Alloy Preload Bolt for Shimano Cranks (crank preload bolt)
• Bottom Bracket Seal and Dust Cover Service Tool (seal & dust cover service tool)