BBright to Extended BB30 (92mm Axle) Racing Edition (Black) Bottom Bracket

(14 customer reviews)

£195.00 (£234.00 inc VAT)

This bottom bracket is designed to interface a 30mm Extended BB30 Axle Crankset (MINIMUM 92mm axle length) with a bike frame that uses a BBright Bottom Bracket (46mm Nominal Inside Diameter X 79mm Wide, 45.95-46.00mm bike frame diameter).

1 in stock (can be backordered)

SKU: BBright-Extended BB30 (92mm Axle)-Racing Edition (Black) Category:


This bottom bracket is designed to interface a 30mm Extended BB30 Axle Crankset (MINIMUM 92mm axle length) with a bike frame that uses a BBright Bottom Bracket (46mm Nominal Inside Diameter X 79mm Wide, 45.95-46.00mm bike frame diameter).

  • Hambini Proprietary heat treated alloy, >20% stiffer than standard supply
  • Aerospace tolerances, guarantee a no slop fit with good retention
  • One Piece design is inherently creak free
  • NTN/NSK ultra low friction bearings
  • No Hammers to install or remove
  • Fully serviceable Design, the bearings are designed to be replaced quickly and easily
  • 1 year warranty on the bottom bracket body
  • Supplied with fitting adaptors, a press or studbar in M12 size will be required
  • All Hambini one piece bottom brackets require obstruction free access to your bottom bracket shell Click Here for Bike Specific Application Guide

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 to Aerospace tolerances using Aerospace materials by an Aerospace Engineer.

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.

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 removed and serviced in situ. Essentially the bottom bracket has been designed to be fully rebuildable

Please click on the reviews to get more opinions

Spin Test

Spin tests are not good measures of friction as the bearings are unloaded but this video highlights the benefit of good bearing alignment on friction and bearing life. This particular bottom bracket had completed 10,000km.

Comparative Friction

The graphs below show 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.

Average Power Consumption - Hambini, CeramicSpeed, Kogel, Praxis

The high torque and low RPM of pedalling causes high Hertzian contact stressing 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.

A Hambini BB is a one piece bottom bracket. It actively contributes to the stiffness of the bike’s pedalling 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.

Bottom Bracket Stiffness Comparison Hambini, CeramicSpeed, Kogel, Praxis


For installation, you will require a bottom bracket press or a piece of M12 studbar and some nuts. A video showing the method of installation is linked below, the picture and text installation guide is available here


For removal, you will require a bottom bracket press or a piece of M12 studbar and some nuts. A video showing the method of removal is linked below


Hambini Bottom brackets are designed so you can service the wearing component (the bearings) quickly and easily. The bottom bracket service procedure is shown below

Design Process

The process through which Hambini Bottom Brackets are designed is shown in the video below

Frequently Asked Questions

I have rounded up some of the most frequently asked questions that I get asked and put them in the list below

Q. Why are Hambini Bottom Brackets more expensive than everybody else?

A. Hambini Bottom Brackets are made in the UK where costs are considerably higher than the far east. Additionally as a private individual, I do not have the economies of scale that contract manufacturing companies are able to obtain.

Q. What is the difference between a Hambini Bottom Bracket and a mass market bottom bracket?

A. From a technical perspective, mass market bottom brackets are made to poorer tolerances and are therefore more likely to creak or result in poor bearing life. They are also designed to look aesthetically pleasing but compromise on areas which you cannot see (such as the fits, bearings and heat treatement). Hambini Bottom brackets are completely machined as opposed to moulded (Shimano/SRAM/Plastic). The Hambini Bottom Bracket tolerances are typically 10x tighter than Shimano/SRAM/Rotor/RaceFace/Token. Mass market bottom brackets often use poor quality bearings from the far east to maximise their margin. As an example, the bearings on Hambini Bottom Brackets (which are typically NTN) cost more than an entire bottom bracket from RaceFace/Token/SRAM.

Q. Why don’t you use Ceramic Bearings?

A. I have found ceramic bearings to have poor performance in bicycle applications. The ceramic bearings are not 100% ceramic, they are hybrid. A Hybrid bearing consists of ceramic balls sandwiched between a steel innner and outer race. The ceramic balls have a tendency to cut a groove into the steel and this results in poorer performance after only a few 100km. The majority of friction (>80%) in a bearing comes from the seal, grease and cage type. The ceramic balls make up a small fraction of the friction and have the negative effect of rapid bearing degradation. These are the main reasons I do not supply bottom brackets with ceramic bearings

Q. What is the difference between the Racing editions and the standard units?

A. The Racing Bottom brackets are made with superior materials, they are stiffer and slightly lighter. Racing bottom brackets are equipped wih low friction bearings. Racing bottom brackets have approximately 20 percent less friction than Classic units. The total friction is very small and would be difficult to notice when riding but nonetheless there is a measurable difference

Q. How long will the bearings last?

A. I cannot place a life on the bearings as life is largely dictated by the conditions they are subjected to. Having high loadings will increase their rate of wear as will riding in wet conditions. The bearings in all Hambini Bottom brackets are branded and meet minimum ISO standards so they are the best that are commercially available. Typical usage will be somewhere in the region of 2000km to 10,000km. As an example, those who watch my youtube channel will know my fastidious maintenance schedule which consists of weekly jet washing – I change the bearings twice a year, ie 8000km between changes. Due to the low speeds involved keeping them clean is more important than keeping them greased.

Additional information

Crankset Type

Extended BB30 (92mm Axle)



14 reviews for BBright to Extended BB30 (92mm Axle) Racing Edition (Black) Bottom Bracket

  1. Alan L.

    Once again the high quality of Hambini’s products comes through. This is my second BB from him and once again the installation was a breeze and the result was a perfectly smooth spinning and creak free BB that I’m sure will last for years. Thanks very much Hambini, I will most certainly be back again!

  2. Michael

    Fits tightly, runs smoothly, solved the problem!

  3. Steven

    Fast delivery of a very high quality BB with detailed install instructions. Brilliant. Thanks

  4. William K.

    Great bottom bracket. Replaced my CeramicSpeed one. Install went smooth with perfect fitment.

  5. JP Wallace

  6. Stanley Smith

    Good stuff!

  7. Andrea Campenni

    I bought this bottom bracket a month ago, and before leaving my feedback I decided to test it well on my Cervelo Rca.
    The bottom bracket itself is really well made and very smooth. I solved with it the problem of creaking….no more noise at all. The only bad thing is the installation. In my opinion the caps Hambini provides are not enough. The most tricky thing is the first insertion. If the bb doesn’t enter perfectly square with the hole frame you risk to damage your frame.
    I made a quite long video of the installation, which in the end went fine but I had to make by myself a tool to centre the bb into the hole!

  8. Tony

    Beautifully engineered product. Attentive service. Could not ask for more, really.

  9. Mark H.

    So I’ve had a BBwrong equipped Chinavelo since 2013 that I had just accepted would routinely grind up bottom brackets. Now it’s so quiet and grind free it’s sort of a shame to put such a nice BB in such an uninspired bike.

    As for the cursing, you can’t trust people who can’t or won’t curse.

  10. Chris R.

    The quality of the bottom bracket is evident right out of the box. Beautifully machined and the bearings are silky smooth. The owner of my LBS is an experienced mechanic and he was impressed with the design and quality of the BB. Installed on a 2016 Synapse Carbon without issue. Quiet and smooth on the road. Recommended without reservation,

  11. HeinrichHH

    Straight forward to fit and works without any problems. Way stiffer than the POS Shimano I had before.

  12. Kevster

    I don’t know if it is in my head but after fitting this my bike feels so much faster. Applying power is so direct. And holy F*ck is it beautiful

  13. Jimster

    WOW… what a difference. I was skeptical about buying a bottom bracket from an unknown company but given Hambini’s background I don’t know why I had doubts. Service was excellent from start to finish. Very prompt, courteous and thorough. Bottom bracket fit and function were pefect. Like other’s I received it in a reused amazon prime box hence the 4 for quality.

  14. Ben

    Cervelo S3 and the inevitable bottom bracket creak (when it finally came), lead to never ending visits to the bike mechanic. Finally, it was time to do a comprehensive Google search & Hambini’s YouTube video demonstrating the flaws with pressfits was a revelation. Responses to my email were prompt, followed by swift delivery to Perth, Australia. This product is fantastic – such a simple solution to a frustrating problem & so easy to install. Hoping that Hambini makes a Campy compatible version soon.

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