BB30 (68MM), ROAD, for DUB and 30mm CRANKS


Size Guide
Bearing Type



    OUR BB30 DUB or 30mm Spindle Bottom Bracket Module fits: Any frame bottom bracket shell that is 68mm wide, for use with any road DUB or 30mm spindle crank. 30mm cranks vary in length so check with us or the crank manufacturer to find out which spindle spacer combo is right for you. Minimum spindle length for 30mm cranks is 102mm. Older "short" spindle BB30 cranks require the use of our classic BB30 for 30mm.

    We’ve eradicated the dreaded BB30 CREAKS once and for all by eliminating the problematic bearing-direct-in-frame set up that has always been BB30’s downfall. Bike manufacturers are not able to hold the precise tolerances necessary to fit bearings into frames properly, resulting in poor performance, short bearing life, and the noises that let you know the bearings are dying with each pedal stroke. By completely replacing this flawed set up with our 1-piece system the frame is no longer in the equation and you will at last enjoy the benefits of silence, durability, and buttery smooth power delivery that many thought impossible with a BB30-type DUB bottom bracket system. Don’t settle for good-as-new when you can have better-than-ever with a BBInfinite bottom bracket.

    Our BB30 DUB bottom bracket systems ship with the special press tools and retaining compounds you'll need. All you need is the press, such as a ParkTools HHP-2 or 3, or our own Master Tool Press which can be found here..


    Ceramitech Bearings: Our Si3n4 hybrid ceramic bearings feature ultra-spherical silicon nitride balls matched to SAE 52100 chrome steel bearing races that have been processed with additional heat treatment and polishing steps. The result is a hybrid-ceramic bearing that lasts longer than any steel bearing with spin performance no steel bearing can rival. We’re so confident in the durability of our Ceramitech bearings that we back them with a Lifetime Bearing Exchange warranty. These bearings feature mid-contact seals for extreme performance and endurance. Each bearing comes lubricated with Kluber Isoflex Topas NB52. Lifetime Warranty.

    WS2 Coated Ceramitech Bearings: We took our amazing Ceramitech bearings and added an extremely durable, tungsten disulfide (WS2) coating that has a 0.03 coefficient of friction---which means it’s slicker than Teflon, graphite, and even molybdenum disulfide. WS2 has an affinity for oils and greases, which means it maintains a hydrodynamic layer of lubricant where it’s needed most. The result is astonishing spin performance and increased endurance. These bearings feature mid-contact seals for extreme performance and durability. Each bearing comes lubricated with Kluber Isoflex Topas NB52. Lifetime Warranty.

    ABEC-7 Steel Bearings: Crafted from SAE 52100 chrome steel, our BBInfinite ABEC-7 (ISO 492, Class 4) bearings are so buttery that you’d have to buy our Ceramitechs to find anything better. These bearings feature mid-contact seals for extreme performance and durability. Each bearing comes lubricated with Kluber or Koyo. 1-Year Bearing Exchange Warranty.


    Our BB30 DUB bottom bracket module maintains optimal chain-lines for crisp, consistent shifting and drivetrain performance. Duel polymer bearing shields seal out dirt and debris while isolating the steel crank spindle from the steel bearing races to eliminate a major source of creaking.


    Our BB30 DUB bottom bracket features an optimized design and is set to the narrowest stance the crank set allows. This ensures that the interface between the non-drive crank arm and the spindle have the maximum amount of spline engagement and Q-factor is as narrow as possible.


    All BBInfinite DUB bottom bracket modules are 100% compatible with all crank-based power meters.


    Bicycle frame bottom bracket shells are notoriously misaligned, inconsistent, and out of round, and so it’s inadvisable to use the bike frame as the primary aligning member for bottom bracket bearings. Yet, that’s what our multi-piece bottom bracket competition does, and this explains why their systems frequently fail prematurely and creak.

    A BBInfinite OPD (One-Piece-Design) bottom bracket module is a CNC precision-machined hub---like the front wheel hub on your bike---that you press into your frame. And just like your trouble-free wheel hub, BBInfinite OPD bottom brackets have perfectly aligned bearings regardless of your frame’s BB shell alignment and tolerances. Perfectly aligned bearings are essential for thousands of miles of trouble-free use and extreme spin performance.


    BBInfinite OPD is the answer for creaking bottom bracket problems as well. Pedaling forces conspire to lever, and rock, and eventually work multi-piece systems loose. The unitized nature of BBInfinite's BB30 DUB bottom bracket cancels these forces out entirely, which means creaking has no place to start in the first place. It really is that simple.


    Every BBInfinite module ships with the special press tools, hardware, instructions, and the retaining compound you need to get the job done correctly with ease and confidence. All you need is the press for this road bike bottom bracket. If you need a press, check out our Master Tool Press.


  • Technical Specifications

    Weight: Ceramitech: 110g | ABEC-7: 112g

    Frame Width: 68mm

    Frame Diameter: 42mm

    Spindle Diameter: 29mm

Bottom Bracket Selection Guide