Hambini Racing BB86 Bottom Bracket Shimano Crankset (Silver)

(25 customer reviews)

£202.00 (£242.40 UK Customers)

This bottom bracket is designed to interface a Shimano 24mm Hollowtech 2 Crankset (Sora, Tiagra, 105, Ultegra, Dura Ace) and Shimano Compatible (Some ROTOR and FSA) 24mm Cranksets with a bike frame that uses a BB86 Bottom Bracket (41mm Nominal Inside Diameter x 86.5mm wide).

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SKU: BB86-Shimano-Racing Edition (Silver) Category:


This bottom bracket is designed to interface a Shimano 24mm Hollowtech 2 Crankset (Sora, Tiagra, 105, Ultegra, Dura Ace) and Shimano Compatible (Some ROTOR and FSA) 24mm Cranksets with a bike frame that uses a BB86 Bottom Bracket (41mm Nominal Inside Diameter x 86.5mm wide).

Hambini Racing Bottom Bracket Overview

  • 20% stiffer than Hambini Standard Bottom Brackets
  • As used in the Pro-Peloton
  • Aerospace Tolerances for a no slop fit
  • One Piece design aligns the bearings perfectly, reducing the likelihood of creak
  • NTN Bearings Ultra Low Friction Bearings fitted as standard in Road applications. Fully Sealed NTN/FAG Bearings fitted in MTB Applications
  • No Hammers are required to install or Remove the Bottom Bracket
  • Fully Serviceable, the bearings can be replaced quickly and easily
  • It is supplied with fitting adaptors in M12 (or 1/2 inch), a press or studbar will be required to facilitate installation
  • One year warranty on the bottom bracket body

Precision Engineered and Manufactured in the United Kingdom

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.

Hambini Bottom Bracket Reviewed by an Engineer

Hassle-Free Maintenance

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 serviced in situ or removed within just a few minutes. The bottom bracket has been designed to be fully rebuildable.

Unrivalled Performance

Unloaded bearing spin tests are a poor measure of frictional performance but they do highlight good bearing alignment. The link below is to a video of a Hambini Racing Bottom Bracket that had completed 10,000km

Class Leading Parasitic Drag Loss (Friction)

The graph below shows 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.

The high torque and low RPM of pedaling causes high Hertzian contact stresses 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.

Bottom Bracket Stiffness

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


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Additional information

Crankset Type






25 reviews for Hambini Racing BB86 Bottom Bracket Shimano Crankset (Silver)

  1. Brobert

    If you want the best and it works with your bike frame this is the bottom bracket to use should be a standard. Incredibly stiff a little heavier but we are talking grams in an area that demands strength so you don’t want something that light anyway. Hambini was the best nice and quick responsive to work with me despite several attempts of my bottom bracket not working which was all my fault anyway just miss calculated. He finally made me a custom one which I got installed and it’s one of those sayings once you use a Hambini bottom bracket you will never go back. I have a BMC roadmachine which has an HRD line running through the shell I simply pulled the line installed the bracket and re installed the line and re bled the brakes not a big deal for something this good. Thanks again for your help!

  2. Miles Harrison

    First, bad points – it’s expensive and is forever out of stock. about 20g heavier than a stock Shimano BB Good points – Incredibly stiff, power transfer has no lag, it is immediate. There is no flex. This has been made by someone at the top of their game. Top tip: I had trouble buying one so I emailed Hambini and he was kind enough to make one up for me so I avoided the purchasing bun fight

  3. Andreu

    Hambini is quite a character. His YT channel is totally crazy, full of expletives and doesn’t hold back. In contrast, his email exchanges are totally professional, you would think you were talking to someone else! This bottom bracket is beautiful. It’s fit to go on display in a museum. So well engineered and arrives in a brown box with no logo or anything. Riding on it is a game changer. There is zero flex and the feel when going up hill can only be described when you ride it back to back with a stock Shimano. Totally different. I was initially put off by the expense but that was long ago. I would nto ride on anything else.

  4. Jens H

    Very good piece of kit. This is a quality item and you will know it as soon as you pick it up. It fitted well, I used some M12 studding and a couple of nuts. Riding on it is fantastic. THERE IS ZERO FLEX in the base of the bike. I thought the frame was stiff before but now the torsional stiffness is rock solid. I have won 3 local crit races since getting this after being dogged by poor bearing life. Fantastic.

  5. Robert Carlson

    Fits well and does what it says on the tin. All of my bottom bracket problems have since gone.

  6. Philip

  7. Kirill K.

  8. danny w.

    World class quality and truly excellent communication and service. Spins like no other bottom bracket I’ve ever used.

  9. Douglas Z.

    Very good experience with Hambini. Listened to my needs and crafted a custom bottom bracket that is outstanding. Very patient with my questions (I’m not that sophisticated engineering-wise) and responded quickly despite the massive time difference. The quality is incredible.

  10. René

  11. Pawel Niewiadomy

    This is my second bottom bracket from Hambini. This time I went for racing version. As always customer service and communication is second to none! BB itself is a piece of art. Highly recommended!!!

  12. Mark Wood

    What an amazing piece of kit. Looks and feels too good to be hidden away inside the frame. Easy to fit and when I did a spin test the cranks went around with so much ease.

  13. Ronnie

    Hambini Products are of the highest quality, and Engineering. And the service and support are excellent.

  14. Rob C

    I installed this in my 2018 Canyon Aeroad cf slx a few weeks ago. Installation was simple. It went in smooth and firm and has so far performed faultlessly. I can’t say I can detect much additional stiffness as some other reviewers do, although I’m certain it is. A good BB is one you don’t think about, it just sits there and does its job. This is creak free so far and I have a feeling it will be for a long time. But the real test will be long-term. It is expensive but it is well engineered and should out last the frame. Bearings are top quality and easy to change by the look of it. Hambini was very quick to answer my questions and very helpful. If you want the best, don’t hesitate to buy.

  15. Robert

    Excellent quality product and service.

  16. Michael P.

    After watching some Hambini vids it dawned on me that I might be a victim of a bad BB. Eventually I decided to risk the money and get a BB from the famous 5 year old. It was a good choice. The difference is quite noticeable and I am very pleased how easily the crank turns now.

  17. Edmund W.

    Excellent BB designed, the ride quality has improved tremendously!

  18. Khalid AL muhairi

    No comments best quality of Bb’s

  19. Anonymous

    top quality, beautiful part, very well finished
    too bad you can’t see it when it is assembled in the bike

    what was annoying is the long delivery time (not Hambini’s fault)
    and an additional 80 euros import cost (also not to blame on Hambini)

  20. Bryan VanGilder

    Really high quality.

  21. Nick A.

    This is my second BB from Hambini – just like the first one – absolutely superb. Easy to fit and once in you can forget about it – just works. The bike shop had the original (and two months old) out and back in – no joy – still creaking away on a very expensive bike. This BB fitted – silent.

  22. Adam Pearson

    Pre-sale support with choice of bracket and suitability for my frame was exceptional. Even included advice about some required mods to the frame to make everything fit.

  23. Richard

    Outstanding quality and service

  24. peter adrian brouer

    Installation advise for dummies would be appreciated ?

  25. Michael C.

    Installed on my 2021 Giant TCR Advanced Pro rim brake model. I am very impressed with the Hambini Bottom bracket! From concept to quality manufacturing, I couldn’t imagine a more transformative product. I’m a large cyclist at 205 lbs and i thought out of the saddle there was a bit of flex in the frame and the original bottom bracket just didn’t seem on par with the quality of the rest of the bike or drive train. The Hambini bottom bracket installed easy and the stiffness of the bike increased! Couldn’t be happier!

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Q & A

Newbie here, quick question, would this fit a Giant TCR pro disc zero 2021 with Ultegra R8000 cranks? Mo asked on 9 May 2021

This is dependent on whether the bike has double lips. Some older Giant TCR's have this. The newer ones don't (generally). It's always recommended that you do a manual check.

admin answered on 9 May 2021 store manager
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