CeramicSpeed BB ALPHA for BB30 SRAM DUB Road
$3,280.00
Color Options
BlackSize Options
The CeramicSpeed BB ALPHA for BB30 SRAM DUB Road is a flagship ceramic bottom bracket from Denmark, designed for frames with a BB30 press-fit bottom bracket shell (42mm bore diameter, 68mm width) paired with SRAM DUB cranksets (28.99mm axle). Featuring grade-3 Silicon Nitride ceramic balls with hardened stainless-steel races, a 28-iteration seal design delivering 500% improved moisture protection, hand-built in Denmark, and backed by a lifetime warranty. At 112g net weight, with press-fit installation precisely matching the BB30 standard, purpose-built for the SRAM DUB crankset system.
BB ALPHA is a bottom bracket built to outlast your frame. CeramicSpeed has distilled decades of ceramic bearing expertise into this flagship product, with every detail from material selection to sealing architecture rigorously tested and optimised.
Each BB ALPHA unit is hand-assembled by specialist technicians at the CeramicSpeed factory in Holstebro, Denmark. At its core are grade-3 Silicon Nitride ceramic balls — a high-performance material widely used in aerospace and precision engineering, offering exceptional hardness, superior surface finish, and outstanding corrosion resistance. These ceramic balls are paired with specially hardened stainless-steel races to deliver consistent, ultra-low rolling friction.
The sealing system represents a major breakthrough for BB ALPHA. The CeramicSpeed engineering team developed a custom seal and precision dust cover combination through 28 design iterations, achieving up to 500% better moisture and contamination protection compared to previous generations while maintaining minimal rotational drag. This means the bearing internals remain clean and dry even when riding in wet or harsh weather conditions, significantly extending service life.
The newly simplified spacer tube design reduces part count, making installation quicker and more straightforward. Meanwhile, the redesigned cup material and structure achieve a 10% weight reduction over previous generations, offering a meaningful advantage in weight-critical racing applications. This model weighs 112g net, demonstrating excellent weight management for a press-fit ceramic bottom bracket.
This product is designed specifically for frames with a BB30 press-fit bottom bracket shell. BB30 is a press-fit BB standard featuring a 42mm bore diameter and 68mm shell width. Originally developed by Cannondale, the BB30 standard's larger 42mm bore allows the use of larger bearings, providing superior support and stiffness for the crankset axle. The 68mm dimension represents the traditional road bike BB shell width. Press-fit installation means the bearing cups are inserted into the frame BB shell using an interference fit, requiring dedicated press tools for installation and dedicated extraction tools for removal. The advantage of press-fit design lies in eliminating threaded components, simplifying frame manufacturing processes (particularly advantageous for carbon fibre frames), while the larger shell bore diameter accommodates larger bearings for greater structural rigidity.
This model is purpose-built for the SRAM DUB crankset system. SRAM DUB (Durable Unified Bottom bracket) is SRAM's unified crankset axle technology platform, featuring a unique 28.99mm diameter axle design. The core philosophy of DUB is to use a single axle diameter that universally adapts to various BB shell standards — by pairing with different BB conversion cups, the same DUB crankset can be installed in BSA, PF30, BB30, T47, BB86, and numerous other frame types. The 28.99mm axle diameter is precisely calculated to maintain adequate structural rigidity while accommodating various BB shell bore requirements. This product serves as the dedicated solution for pairing DUB cranksets with BB30 frames, with internal bearing specifications and adapter components engineered specifically for the dimensional relationship between the 28.99mm DUB axle and the 42mm BB30 shell bore. The crank width specification for this model is 86mm, representing the total axle span between SRAM DUB road crank arms.
Installation uses a press-fit method requiring dedicated press tools. The CeramicSpeed Bottom Bracket Tool Kit is recommended for installation. Additionally, the SRAM DUB crankset system requires a preload ring to ensure correct axle preload and eliminate lateral play — the CeramicSpeed Preload Ring for SRAM DUB is recommended. For future crank removal, the CeramicSpeed Crank Bolt Removal Tool is also recommended. Prior to installation, please consult the CeramicSpeed official Spacer Chart and Compatibility Matrix to confirm suitability for your specific frame and crankset combination.
All BB ALPHA products are backed by the CeramicSpeed Lifetime Warranty.
Key Features
Grade-3 Silicon Nitride Ceramic Balls (CeramicSpeed Balls)
Manufactured from aerospace-grade Silicon Nitride, these balls offer exceptional hardness and superior surface finish, dramatically reducing rolling friction and significantly extending bearing service life. Compared to traditional steel balls, ceramic balls are lighter, have a lower thermal expansion coefficient, and offer superior corrosion resistance.
Hardened Stainless-Steel Races
The races undergo a special hardening treatment for outstanding wear and corrosion resistance. The stainless-steel material is inherently corrosion resistant by design, ensuring stable ultra-low friction performance over extended use.
28-Iteration Precision Dust Covers
Custom-designed dust covers refined through 28 design iterations achieve the optimal balance between fitment and protection, effectively blocking external contaminants from entering the bearing interior.
500% Moisture Protection Improvement
The custom-engineered sealing system has been laboratory-tested and proven to deliver 500% better protection against moisture and contamination versus previous generations, significantly extending bearing lifespan across all weather conditions.
Lightweight Cup Design
Cup material and structure have been redesigned and optimised to achieve weight reduction while maintaining adequate strength, delivering a 10% overall weight saving compared to previous generations.
Super-Light Spacer Tube Design
The simplified spacer system achieves greater versatility and installation convenience with fewer part variants, while further reducing weight.
BB30 Press-Fit Installation (68mm Shell Width, 42mm Bore Diameter)
The BB30 standard uses press-fit installation where bearing cups are precision-fitted into the frame BB shell via interference fit. The 42mm bore diameter accommodates larger bearings, delivering superior crankset axle support and structural rigidity. The 68mm shell width represents the standard road bike BB shell width. Press-fit design is well-suited for carbon fibre frames and other frame types where threading is impractical, offering clean and efficient installation.
SRAM DUB Crankset Dedicated (28.99mm Axle)
Purpose-engineered for the SRAM DUB unified axle platform with its 28.99mm diameter axle, precisely matching SRAM DUB's proprietary axle architecture and bearing specification requirements. Compatible with all SRAM road cranksets utilising DUB technology, including RED, Force, and Rival series. Crank width specification is 86mm.
Lifetime Warranty
All BB ALPHA products are covered by the CeramicSpeed Lifetime Warranty, safeguarding your investment for the long term. Simply install and maintain according to official guidelines to enjoy lifetime warranty coverage.
Hand-Built in Denmark
Every bearing is individually assembled and quality-inspected by specialist technicians at the CeramicSpeed factory in Holstebro, Denmark, ensuring every unit shipped meets the highest standards.
Serviceable Design
BB ALPHA is built on a serviceable design philosophy, allowing users to clean and re-lubricate bearings as needed, extending product lifespan and reducing overall replacement frequency.
Specifications
SKU: 115425
Barcode: 5711050143016
Product Line: BB ALPHA
BB Type: BB30 68mm Press-fit
Installation Method: Press-fit
Frame BB Shell Standard: BB30, 42mm bore diameter, 68mm width
Bearing Configuration: Press-fit
Axle Diameter: 28.99mm
Compatible Crank Brand: SRAM
Compatible Crank System: SRAM DUB
Crank Width: 86.0mm
Discipline: Road, Tri, and Track
Net Weight: 112g
Gross Weight (with packaging): 226g
Colour: Black
Origin: Denmark
Warranty: CeramicSpeed Lifetime Warranty
Compatibility
This product is compatible with all frames featuring a BB30 press-fit BB standard (42mm bore diameter, 68mm shell width), purpose-built for pairing with SRAM DUB cranksets. BB30 refers to a press-fit BB shell with a 42mm bore and 68mm width — please confirm your frame's BB shell is BB30 standard (42mm bore, 68mm width) before purchasing, and not PF30 (46mm bore), BB30A (73mm width), or other similar but distinct specifications. SRAM DUB uses a unique 28.99mm axle diameter, and this product's bearing specifications and internal adapter components are engineered specifically for this dimension. Press-fit installation requires appropriate press tools — never use a hammer or improper tools for insertion, as this may damage the frame or bearings. The CeramicSpeed Bottom Bracket Tool Kit and CeramicSpeed Preload Ring for SRAM DUB are recommended for installation. It is recommended to consult the CeramicSpeed official Compatibility Matrix and Spacer Chart before installation to confirm suitability for your specific frame and crankset combination.
In the Box
BB ALPHA for BB30 SRAM DUB Road bottom bracket, UFO TECH All Round Bearing Grease 5ml sample bag, CeramicSpeed Decal.
Recommended Accessories and Tools
The CeramicSpeed Bottom Bracket Tool Kit is recommended for installing BB30 press-fit bottom brackets to ensure cups are evenly and correctly pressed into the frame. The CeramicSpeed Preload Ring for SRAM DUB is recommended to ensure correct DUB crankset axle preload and eliminate lateral play. The CeramicSpeed Crank Bolt Removal Tool is recommended for crank removal procedures.
