BBright to Shimano Racing Edition (Black) Bottom Bracket

(25 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 BBright Bottom Bracket (46mm Nominal Inside Diameter X 79mm Wide, 45.95-46.00mm bike frame diameter).

Available on back-order

SKU: BBright-Shimano-Racing Edition (Black) Category:

Description

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 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

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

Shimano

Frame

BBright

25 reviews for BBright to Shimano Racing Edition (Black) Bottom Bracket

  1. lobuxracer

    I needed to convert from BBRight 30mm to Shimano 24mm, and this bottom bracket made that simple. But, not only did it make it simple, the shell, once installed, never need come out unless your Di2 wiring goes wrong and you must get to the junction located nearby. I appreciate when I can install something, use a decent Loctite bearing mount, and not have to muck with it again. Install of the FC-R9100-P went like butter. Chainline was perfect, FD Di2 mech needed no adjustment at all, and watching the video (especially the piece about checking with a feeler gauge) made all the difference. It also calms your nerves when you hear the loud popping as you are pulling the shell into the frame. I used isopropyl alcohol to clean and Loctite 641 with 7649 Primer and Activator on the frame itself. The NTN bearings are glassy smooth, and I was also able to locate them from a reputable supplier in the US for a very reasonable price without having to ship from the UK. Spares on hand already… To sum it up, I could not be happier, it was really much too easy. and having spent some time fabricating bits for road racing motorcycles myself, this piece is really a work of art and a shame to hide inside the frame.

  2. MagicVelo93

    I watched the channel, did a quick google search. All the reviews were positive and so is mine. Customer service is faultless, product is faultless and I would have no hesitation in buying another Hambini product again. You are paying for the expertise but you won’t regret it.

  3. Steve Klery

    Massive upgrade for my Cervelo S5. Service from Hambini was superb from start to finish. Cataclysmic difference in quality between this and anything else on the market- I ‘ve tried them all. Not a patch on this.

  4. Meadh

    I went through FSA, rotor, and ceramic speed bottom brackets before getting this one. This one is miles better, design is completely different. Went in with no issues other than some creaking during installation. 10,000km and I am still on the original bearings. Will probably be due a new set in 2000km.

  5. Justin Elves

    Well made, looks brilliant. Installed like a boss. What else do I need to say. Works perfectly.

  6. k3vin98

    Fitted this as my Aeroad creak like crazy with the stock shimano BB. When I fitted it, I realised it was a quality product. Big difference during riding. No creak, no slop and no flex. Good upgrade. 5*

  7. Charlie Moores

    I’ve bought two bbs from the magician Hambini – one for a creaking Cervelo R2 (with Rotor cranks and an fsa bb) and just last week one for a new S5 that ‘ticked’ like it had deathwatch beetle (with shimano and a praxis works bb) . Both made an instant difference. It may be placebo (tho bear in mind placebos do work) but I’d swear the bikes are faster too. I’ve bought jerseys that cost more than these bbs, and I know which is better value and will give more pleasure long term. If you wonder whether a Hambini bb really makes a difference email the guy – his customer service is astonishing considering most people will probably not spend even a couple of hundred quid max – and let him help: I’m hopelessly impractical and he was patient, helpful, and on the ball. Imho – just do it!

  8. SynapticSugar

    The package arrived in Canada quickly and with no added charges via the basic postal service. I had to order the Loctite products from my local machine supply store. Once I had all the components I went to my local bike shop to have it installed. The videos online really helped me explain the whole process to anyone else. Once installed I was surprised at just how much smoother it was than the stock Cervelo threaded BB. The creaking has been complete eliminated and it looks so cool on the bike with its clean angular lines. I keep admiring it!

  9. Allan

    I can whole heartedly say this is one of the best BB’s I have ever baught. Well designed as a one piece which stops the creaking with the added benefit of being able to service the bearings without taking the whole thing out. Service was amazing from Q&A to making additional top hat spacers. I could not recomend this more, buy one you wont look back.

  10. Andy K.

    Great service, elegantly designed product.

  11. Ype Poortinga

    I had a horrible creak in my nearly new Cervelo S3. Instead of going back to the shop (really did not feel like going back and forth or trust them to solve my problem), I decided to take the leap and look for a permanent solution. I’ve contacted Hambini with a few questions and he is remarkably helpful. Had some problems with installation (the round BB shell was not round) and nearly panicked, but after some contact with Hambini all went well. Skip forward 10 months and another ~5.000km and I can say I’m extremely happy. Not only has the BB been buttery smooth since, it also (unexpectedly) feels like a real upgrade with instant power transfer and extremely stiff. It’s hard to explain and maybe it’s between my ears, but it’s by far the smoothest I have experienced. My next bike definitely gets a Hambini BB again, not so much because you always need it, but just to support this great chap and have my mind trouble free.

  12. Matthew Varey

  13. Tom H.

  14. Gonzalo Huertas del Pino

    Installation was simple, bb is smooth as butter.

  15. Kevin

    Works like a champ! Easy to put in and spins great.

  16. Kevin

    Fantastic upgrade! Easy to put in and could immediately tell it was stiffer and spun better. F’n love it!

  17. Charlie Moores

    Three bikes, three Hambini bottom brackets. Fantastic customer service (no question too stupid!), prompt delivery. Yes, of course there are cheaper bbs around – but ‘cost’ includes peace of mind, quality, the investment of the manufacturer in their product, quality, how well something works, quality…If you want a quality part that will just work and keep on working just do it!

  18. David Finn

    You wont get a better bottom bracket for your bike , replased the bb on my cervelo s3 with the bbright shimano hambini bb perfect fit and creak gone, every thing runs smoother with a one piece bb and makes the bike stiffer , 👍10 out of 10

  19. Iain G

    Superb kit. Was using BBINFINATE prior to this. A fortune in customs charges and not as good ! Plus E mails answered almost straight away. Pricey BUT ….. Worth it. Totally satisfied

  20. Anonymous

    The bottom bracket is great. Feels really smooth.

  21. Leif-Petter

  22. Alan L.

    Hambini has been nothing short of fantastic to deal with.His products are beautifully made and his customer service is outstanding. The BBright unit works perfectly in my R5.

    I can wholeheartedly recommend his BB’s!

  23. Jean Cloutier

    Understandable delay considering covid (ordered on July 13th. received August 25th. The BB was installed on the 26th and first tested on the 27th. From the moment I stepped on the crank I immediately felt a immense sensation of solidity and integrity on my 2018 Cervelo R3. Along with Roval CLX50 wheels my ok bike became an unbelievable machine.
    Thanks Hambini. Le Psycliste de Val-David

  24. Peter

    Great Product! Good Service!

  25. Andrew D.

    Unit arrived in a timely fashion and as ordered. Video and text instructions enabled simple installation to my 2015 Cervelo P3. The supplied installation tools did a great job in what proved to be a tight fit. Looking forward to the first test ride mid week.

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