Hambini Racing BB86 Bottom Bracket SRAM GXP Crankset (Black)

(12 customer reviews)

£295.00 (£354.00 UK Customers)

This bottom bracket is designed to interface a SRAM GXP Crankset with a bike frame that uses a BB86 Bottom Bracket (41mm Nominal Inside Diameter x 86.5mm wide).

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SKU: BB86-GXP-Racing Edition (Black) Category:


This bottom bracket is designed to interface a SRAM GXP Crankset 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 Beraings 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.


A lot of support questions can be answered by visiting the support section.

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You can contact support on support@hambini.com or use the Contact Form

Additional information

Crankset Type






12 reviews for Hambini Racing BB86 Bottom Bracket SRAM GXP Crankset (Black)

  1. Spencer Hogg

  2. Simon B.

    Top notch quality.

  3. iain macdonald

    Brilliant service excellent helpful bang on delivery superb

  4. Nils

    I followed Hambini’s advise and put the bottom bracket in the freezer prior to installation and it went in with minimal force. No noise, no heavy pressure on the press.

  5. peter

    Highly recommend

  6. Hank


  7. Andy

    Easy to install on my BMC team machine. Looks great.

  8. Alberto S.

    Great product, and great tech support via online videos, website, and answers to emailed questions. Wonderful experience all around. If ordering from the US and you don’t like to wait, pay the extra for shipping so your stuff doesn’t spend a few weeks with the customs folks!

  9. Khalid AL muhairi

    Best quality from Hambini

  10. Austin

    Great product and great customer service able to answer any questions and fulfill requests such as a Shimano style bearing arrangement. If anything I’d like to have a tiny sample container of retaining compound as I had to buy a full bottle which does have a fairly short shelf life and I will likely only use that bottle once.

  11. Mark S.

    Quality product. It’s the shiz.

  12. Rheicel R.

    One of the best bottom bracket around. Shipped quick to Australia too!

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Q & A

Is use a GXP Crank at the moment but will probably switcht to Shimano in the future. Is it possible to convert this unit to Shimano in future by pressing in different bearings or using a different bearing cover? Max asked on 10 August 2022

Yes you can, you'd need a replacement bearing and 24mm top hat for the non drive side.

admin answered on 10 August 2022 store manager
(0) (0)
When using in combination with SRAM Red eTap AXS with BMCTimemachineRoad01 Can I use this BB without any problem? Toshi asked on 19 May 2022

AXS uses a DUB axle and this will not fit.

admin answered on 21 May 2022 store manager
(0) (0)
What kind of BB is this PF or threaded connection? Geert asked on 29 October 2021

Pressfit BB86

admin answered on 29 October 2021 store manager
(0) (0)
What size bearings are fitted to this GXP BB as I want to order replacements? Simon B asked on 4 September 2021

NTN 6805LLB is the factory bearing. Any 6805 will fit but make sure they are genuine bearings as this is one of the most commonly counterfeited bearings going.

admin answered on 4 September 2021 store manager
(1) (0)

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