PF30 to Shimano Racing Edition (Orange) Bottom Bracket

(13 customer reviews)

£234.00 (£195.00 ex VAT)

This bottom bracket is designed to interface a Shimano 24mm Hollowtech 2 Crankset (Sora, Tiagra, 105, Ultegra, Dura Ace) with a bike frame that uses a PF30 Bottom Bracket (46mm Nominal Inside Diameter X 68mm Wide).

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SKU: PF30-Shimano-Racing Edition (Orange) Category:

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This bottom bracket is designed to interface a Shimano 24mm Hollowtech 2 Crankset (Sora, Tiagra, 105, Ultegra, Dura Ace) with a bike frame that uses a PF30 Bottom Bracket (46mm Nominal Inside Diameter X 68mm Wide).

  • 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




13 reviews for PF30 to Shimano Racing Edition (Orange) Bottom Bracket

  1. KevvaE3

    Recommended to me by some other users of, granted it’s pricey but it’s the best bottom bracket you’ll ever get.

  2. BiloSpartan

    This is a quality piece of engineering and a shame to have it concealed.Very stiff and rock solid. No squeaks, creaks etc. The only negative is the time it took to get hold of a bottom bracket. It was forever out of stock.

  3. Mike Jefferson

    If you want the best bottom bracket look no further. You won’t find anything better engineered than this. It’s evident that this was made by someone who takes pride in his work. In short, quality product

  4. James Brett

    Does the job but you are paying for it.

  5. Brian Allan

    I went from a bike that was creaking so badly I contemplated changing the frame to a bike that runs super smoothly. The difference was instantaneous and engaging. Customer service and technical support throughout has been very quick, honest and totally un-pressured. Technical help especially is a different planet. This guy makes every bike mechanic I have had dealings with look like an amateur.

  6. Jason Stead

    As a non technical person, I didn’t have the tools to fit this so Hambini supplied this to me with some additional studbar and two nuts. With all of this, you can fit it in about 20 minutes. My bike has gone from being a creaking soggy nightmare to rigidly stiff and a joy to ride on. Service and support from Hambini are both excellent

  7. Racing Snake

    OK, the negatives… the Packaging does not suggest you are getting world class engineering, it is well packed but a recycled box?? WTF. You don’t receive a manual. Opening the box you get the bottom bracket and a number of delrin bits which are to install the item. I used a park tool press to install it. During installation the bike did creak a bit which was disconcerting. Once installed F*ck me, the crank is just so smooth and spins freely. This bottom bracket is undoubtably well made. There are no adaptors or spacers, it just pushes in. put your crank through and tighten it up. The gap between the crank and the bottom bracket is absolutely miniscule but it does not rub. I initially dismissed his videos as marketing BS but having had e-mail dialogues with him, he will not sell you anything you don’t need, is not pushy and gives you an in depth explanation for what I could describe as trivial questions. I have now ridden 900 miles with no creaking, no popping, no dramas. Before trying this one, I had visited my LBS umpteen times and been sold several hundred pounds of bottom brackets. I would give him 10/10 for the product, 10/10 for the service and 5/10 for the packaging.

  8. Chorleyracer

    Remarkable improvement that you can feel. No creaks, no squeaks, it just works. Super smooth.

  9. Stevie

    There have been a lot of posts about packaging. Yes it’s recycled but I’d rather have that then pay more for the BB. This BB is in a league of one it’s miles better than anything else I’ve tried.

  10. Doctor

    Wonderfully designed bb that corrects the designed flaws of the PF30/BB30 bracket. Who cares about the packaging, even if were packaged in manure I would buy it again. My only mistake was not to buy 2 in case this guy dies.

  11. Subra89

    You won’t get service like this anywhere else, Period. A member at my local club recommended this guy Hambini. Hi service is customer focused to another level. Very quick to respond, and knows his shit. Item is buttery smooth. The only place where costs are cut is probably the box. It’s plain brown packing and nothing to write home about. Once you get past that, this BB is sexy as ****. I wish I didn’t have to hide most of it in the frame. I’m waiting for him to do MTB.

  12. cyKlist

    Good service, a bit on the pricey side but bottom bracket is a good upgrade.

  13. Aidan Davis

    This looks much better in the flesh than the picture. During fitting my bike was making all sorts of pops and bangs but it went in and was super rigid. I’m now close to 500miles later and I would say this has made me much faster, especially going up hill. It’s very stiff and you can feel the difference. It’s expensive, that’s the only negative.

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