Hambini Racing PF30 Bottom Bracket SRAM DUB Crankset (Black)

(3 customer reviews)

£265.00 Ex. VAT

This bottom bracket is designed to interface a 29mm SRAM DUB Crankset with a bike frame that uses a PF30 Bottom Bracket (46mm Nominal Inside Diameter x 68mm wide).

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SKU: PF30-DUB-Racing Edition (Black) Category:


This bottom bracket is designed to interface a 29mm SRAM DUB Crankset with a bike frame that uses a PF30 Bottom Bracket (46mm Nominal Inside Diameter x 68mm wide).

Hambini Racing Bottom Bracket Overview

  • 20% stiffer than Hambini Standard Bottom Brackets
  • As used in the Pro-Peloton
  • One Piece design aligns the bearings perfectly, reducing the likelihood of creak
  • NTN Bearings Ultra Low Friction Bearings fitted as standard in Road applications. Fully Sealed NTN/FAG Bearings fitted in MTB Applications
  • No Hammers are required to install or Remove the Bottom Bracket
  • Fully Serviceable, the bearings can be replaced quickly and easily
  • It is supplied with fitting adaptors in M12 (or 1/2 inch), a press or studbar will be required to facilitate installation
  • One year warranty on the bottom bracket body

Precision Engineered and Manufactured in the United Kingdom

Hambini Bottom Brackets are amongst the lowest friction bottom brackets in the world. They are used by recreational cyclists, road racers, triathletes and time trialists from around the globe. They are of proven design and are manufactured in the United Kingdom. These units are of a one piece construction which makes them inherently resistant to creak, they will maintain perfect bearing alignment and function under loads in excess of 4000W.

Hambini Bottom Bracket Reviewed by an Engineer

Hassle-Free Maintenance

All Hambini bottom brackets can be installed and removed with a conventional bearing press, they use a controlled method of installation using the recommended fitting adaptors, they require no hammers or specialized tooling for removal. Additionally, the wearing component – the bearings – can be serviced in situ or removed within just a few minutes. The bottom bracket has been designed to be fully rebuildable.

Unrivalled Performance

Unloaded bearing spin tests are a poor measure of frictional performance but they do highlight good bearing alignment. The link below is to a video of a Hambini Racing Bottom Bracket that had completed 10,000km

Class Leading Parasitic Drag Loss (Friction)

The graph below shows how Hambini bottom brackets perform in comparison to the bottom brackets of other manufacturers. The test conditions model real world cycling and more importantly mimics realistic frame tolerances. All of these tests have been conducted with an eccentricity of 0.1mm which is generally the maximum permitted in frame specifications – the reality is tolerances have been known to be much worse than this. Misalignment is more critical to friction than the type of bearing ball material, a slight misalignment can easily outweigh the difference between a top of the range NTN bearing and a mediocre ebay no name bearing. The results show that bottom brackets which have an element of structural linkage between the drive and non-drive sides (one piece/threaded etc) perform much better than those which are multi piece.

The high torque and low RPM of pedaling causes high Hertzian contact stresses on bearing surfaces which cause friction levels to change over time. Those bottom brackets which have used ceramic bearings, start off with fairly low levels of friction but over time their friction increases dramatically. The super hard ceramic balls grind a track into the comparatively soft bearing races causing friction to increase. This would be analogous to trying to drive a locomotive train on a road, the wheels would cut grooves into the road surface due to the huge difference in surface hardness.

Bottom Bracket Stiffness

A Hambini BB is a one piece bottom bracket. It actively contributes to the stiffness of the bike’s pedaling platform. Threaded and multi piece bottom brackets have an element of play in their design so they do not contribute anywhere near a comparative level of stiffness. Reviewers of Hambini BB’s often comment on their feeling of improved stiffness, this is due to them being one piece and undergoing a proprietary heat treatment process. This makes them stronger and stiffer. This is a difference the end user cannot see – but they can feel.


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Additional information

Crankset Type



3 reviews for Hambini Racing PF30 Bottom Bracket SRAM DUB Crankset (Black)

  1. Pablo

    Build quality excellent, BB installation went smooth. The increase of stiffness is definitely noticeable.

  2. James C.

    I finally got my bike together. Your how to video on YouTube was very helpful! Thank you

  3. Denis C.

    Very smooth

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Q & A

When will these be available again? Julian asked on November 21, 2023

Stock is updated regularly but if there is something you need and it's not available, you can email support@hambini.com

admin answered on November 27, 2023 store manager
(0) (0)
Is this suitable for Giant TCR Advanced SL MY21 frame? The crankset to be used is Sram Red DUB. Hope to hear from you soon, and thanks in advance. Schneider asked on August 19, 2022

It is not suitable for a TCR, that uses a BB86 bottom bracket.

admin answered on August 19, 2022 store manager
(0) (0)
Can i use this for my VENGE OSBB with SRAM RED DUB Crankset? Stephan asked on January 21, 2022

I'm afraid it won't work. The OSBB is too narrow.

admin answered on January 24, 2022 store manager
(0) (0)
Do you have a product to fit a PF30 DUB wide (86,5mm) bottom bracket? Rod asked on November 11, 2021

86.5mm is a BB386EVO shell. If that is correct then BB386EVO DUB would work.

admin answered on November 12, 2021 store manager
(0) (0)
Can it be shipped to Indonesia? LUIS asked on October 28, 2021

Yes it can, just select in the checkout

admin answered on October 29, 2021 store manager
(0) (0)

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