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

(13 customer reviews)

£170.00

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).

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

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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

13 reviews for PF30 to Extended BB30 (92mm Axle) Racing Edition (Orange) Bottom Bracket

  1. Max Blythe

    I used this to convert my cannondale from PF30 to Shimano. It’s rock solid and runs like butter. Ordered on 1/3/2018, arrived 1/10/18. I watched the video and installed it with the loctite products recommended because I didn’t want any creaking. Installation went smoothly and I’ve been rolling around on DA 9100 without any problems. In riding, it is way way stiffer than anything else I’ve tried.

  2. Bilyse3

    One Word Dope.

  3. Coldwell

    Bought a new Cannondale Supersix Himod frame and with all the known faults associated with BB30/PF30/PF30a I decided to find a B.B. adapter that would resolve any issues from the get go. The B.B. was dispatched quickly, installed with ease days before a trip to Majorca. 457.8 miles 35000ft climbing later and the B.B. has worked without fault, spins like no other B.B. I’ve used and improved the chain line. I’ve contacted Hambini several times to resolve issues with the internal cables passing through the B.B. shell and on each occasion he’s answered any queries or resolved them almost instantly. Honestly can’t say I’ve had better after sales service than I’ve had with this product. If you have a BB30 or BBright system then this is the only B.B. I would recommend.

  4. JaxtheCyclist

    If you are willing to spend the money, this is the best bottom bracket you will buy. Built to last and fully serviceable. It’s expensive but it beats the pants off anything else out there.

  5. Cameron Blacksmith

    My situation: Boardman bike with a PF30 BB, Creaking and a general PITA. I exchanged a few emails with ‘Hambini’, decided to buy this. Postage quoted at 3-5 days, Ordered on Thursday night, arrived Saturday morning, fitted saturday afternoon. Club ride Sunday. Polished aluminium finish, looks beautifully made. Service and support are on another level. Very reasonably priced and made in ENGLAND!

  6. Jamie Newcastle Vaga

    I bought the Hambini PF30 BB and fitted it as per instructions and noticed I had some creaking. I was pretty peeved because it is sold as reducing creak. I contacted Hambini, he thought I might have an oversized BB hole and sent me over some measuring tools to check, it was checked and diagnosed. I was sent a new BB a week later, fitted it and it has not creaked since. Amazing machining quality and the best customer service I have ever had. Really good. Can’t fault it

  7. Gareth Sleight

    Delivery a little slow. Item is well made and fits well. All of my creak went away after installing this

  8. USA Bike rider & PhD Mechanical Engineering

    I purchased this for my Bianchi Infinito which has a PF30 BB with shimano cranks. Each time you pedal, a thread-in bb cup (or press in cup), it tries to rock out of the shell. This is what causes the creaking. The Hambini is one piece so this rocking torque (and the creaking) is completely eliminated! With the one-piece shell, the press fit perfectly holds the unit in place. It will NOT move once you press it in unless you want to remove it. It is so smooth that when I lift my rear wheel and turn my pedals, the cranks keep turning b/c there is no friction in the bearings. Genius! This is a must have if you have a frame with PF30, BB30 or any similar. Also, Hambini is great at answering email and shipping right away.

  9. KG Telldia

    Really good bottom bracket. I cannot emphasise how good this looks in real life. Fits perfectly and spins up like you would not believe. No creaking and the bike feels so stiff. The biggest issue I had, like others, is obtaining one. He is forever out of stock. I had to email Hambini to get him to put one to one side so I didn’t lose out.

  10. Mickey G

    Local bike shop fitted it for me. The saturday boy was drooling. Looks stunning and works perfectly. 5 stars

  11. Bruno Ronchetti

    I own a hire business and bike shop in Como in norhteren Italia. I have customers who treat my bike not very good and complain of noises from crank. I fit this to 6 bikes, not one complaining. Other customer buy italian frame with Hambini Bottom bracket to silence the noises. Very good engineer, although expensive. Beautfil to the eye

  12. Tomas Berka

    Bought it to replace my creaking and sluggish PF30. Fantasticly precisely made, easy to fit; massive improvement in stiffness of the whole BB area + the cranks spin really easy! Hambini was very helpful and provided a lot of advices before I placed the order so I was sure I got the right product. I appreciate such an honest approach a lot! I recommend the product without hesitation! TB

  13. Br1an Shaw

    Well engineered product. Just make sure you buy the right one. I was fooled by the sticker on my bike which said BB30. It transpired the crank was indeed BB30 but the bottom bracket was PF30. A word on his customer service: I emailed Hambini at 10pm on the Monday, telling him I had a problem with the bottom bracket – I assumed he’d sent me the wrong one. He asked for a picture 15 minutes later and then came back with the answer a further 12 minutes after that. Total time to resolution 37 minutes!! WTF. I received a brand new bottom bracket on Wednesday and he covered the return postage of the item that I had ordered in error. I took my time and the bottom bracket install only took a few minutes, most of the time was spent taking the old crank out. The difference on Dura Ace v Hollogram is out of this world. Dura Ace shifts miles better and this bottom bracket has no creak. It feels super stiff. Thumbsup from me. well pleased

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