PF30 to Extended BB30 (92mm Axle) Racing Edition (Black) Bottom Bracket

(22 customer reviews)

£234.00 (£195.00 ex 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 PF30 Bottom Bracket (46mm Nominal Inside Diameter X 68mm Wide).

1 in stock

SKU: PF30-Extended BB30 (92mm Axle)-Racing Edition (Black) Category:

Description

This bottom bracket is designed to interface a 30mm Extended BB30 Axle Crankset (MINIMUM 92mm axle length) 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

Installation

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

Removal

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

Service

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)

Frame

PF30

22 reviews for PF30 to Extended BB30 (92mm Axle) Racing Edition (Black) Bottom Bracket

  1. MariodaCosta

    I’m a crit racer and was plagued by creaking cranks on my Cannondale. After three different BB’s I swapped over as a last chance to a Hambini BB. If this didn’t work I was going to put the frame in a dumpster. It arrived after about a week and I fitted it over the weekend. I usually like to try these things before racing on them but I didn’t have the opportunity. After several crit races I can report the BB has been totally troubleless. Bearings run smoothly and best of all there is no creak. Hambini’s customer service is excellent. Very customer focused and knowledgeable to boot. 5 stars across teh board.

  2. Kev in london

    This is a well made BB. All of my creaking went with this thing. It is beautiful to look at and right up there with Chris King stuff. The cons are it doesn’t look like a retail product when you receive it. The instructions are a youtube video and some literature on the website. I’m old school and would like to receive a paper manual. In riding this cannot be beaten. Makes the drivetrain super smooth.

  3. TJ

    to echo everyone else’s comments, Bottom bracket is superb. Well made and runs super smoothly. Expensive to install initially but after that you can replace the bearings quickly and easily. Customer service is a huge thumbs up. Very good customer service and responsive emails. You won’t find better. A+

  4. Bubbles34

    I fitted this to my canyon aeroad. Fitting took me about an hour but in no rush. Cranks in the freezer and they slid straight in. I have ridden 2-3 rides of about 100km on it. It’s excellent. No creaking and feels uber stiff. Spot on.

  5. Bryan Clement

    I have been riding on a Hambini BB for about 3 months now so I thought it would be a good time for a review. The installation was a distant memory so I can’t comment on that much. In riding, this has been an excellent upgrade since day 1. It’s very smooth, the bearings last well and it has clearly been made by someone who understands ease of maintenance. All queries handled by the man himself. Thorough is an understatement. A+

  6. Darren Brennan

    This is my second bottom bracket, the first one I bought the PF30 for my Boardman. This one is just as good, creak free, spins forever. A bit miffed the price is more expensive than the PF30 unit but even then, this is by far a superior design than anything else on the market. Hambini the man, is helpful as ever. 10/10 for service.

  7. Mohammadsxrider

    Had some bb creak, and was recommended this by a cycling club member. Works flawlessly. Local bike shop said it was easy to install

  8. Josh Parkyn

    Technical support before the purchase was exceptional. Everything explained in great detail. Great price, the box and packaging were shite. He needs to fix that 🙂 product is amazing. Installation was noisy as my bike frame was creaking but once in. Brilliant.

  9. Bryan Rabeler

    Very good no issues whatsoever. Service was spot on.

  10. Mike Henessay

    Came this morning, installed in about an hour. Went for a 100km ride and it was faultless. No creaks, clicks or anything. The only difficulty I had was re routing a DI2 wire.

  11. J Cracken

    Fantastic service from the start. Very prompt and exceptional product. it is easy to tell this is a high quality part.

  12. milesant

    From start to finish, the service and product have been exemplary. The bottom bracket is well made, comes with the adaptors you need to fit it. Fitting was a doddle and all of my creaking has gone. The pedalling action feels super stiff now as well. Super impressed. Only negative is the price… and if you really care the box.

  13. TNRacingSnake

    I’m a graduate of the following brands: Rotor, Wheels MFG, C Bear. All were billed as anti creak and all failed. Installed this and the difference is huge. No creaking and the pedalling action feels noticeably stiffer. Granted it’s expensive but you are getting a pretty qualified guy to make your BB.

  14. MikeGP

    Tremendous customer service. True attention to detail. Very well made. Don’t let the packaging fool you, this is a well made product. It will put everything else to shame.

  15. Marc Jackson

    AFter numerous trips to the LBS, I decided to buy this to put an end to my creaking. Had a short email discussion with Hambini, told me what I needed to buy and it arrived 2 days later. I watched the video, installation was uneventful and off I went. The whole process was such an anti-climax but now the bike feels like I want to ride it rather than the thought of 20 miles of creaking irritating me. Bad points, packaging is plain brown box, nothing fancy and the lack of any written instructions aren’t great. Good Points, Bottom bracket is ridiculously well made, you can pick it up and spin it and realise it has been thoroughly thought out. It spins very freely. On the bike it makes the pedalling feel completely rigid.

  16. Mike Clenny

    Fitted like a dream. Bike transformed. No creak and very stiff. A* Service as well.

  17. Kev Langton

    Quality product. Cannot be faulted for engineering. It is miles better than anything else I’ve tried. The cranks spin so freely now compared to before. Not sure why I hadn’t tried this before.

  18. Clemenzea

    Purchased for my aeroad, the fit is very good and all creaking has gone. IT is MEGA STIFF

  19. JacobCA

    Worth every cent. Delivery was very quick. Bike is like a different animal. Beautiful piece of machining

  20. Matt Bleinem

    Tremendous difference, I fly up hills with no noise! Result.

  21. Paul M.

    A thing of beauty, great customer service

  22. kevin blades

    Not fitted yet not got the frame a superb looking piece

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