Hambini Racing BBright Bottom Bracket Shimano Crankset (Silver)

(5 customer reviews)

£195.00

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 BBRight Bottom Bracket (46mm Nominal Inside Diameter x 79mm wide). This type of Bottom Bracket is almost exclusively used on Cervelo and Factor bikes.

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

Description

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 BBRight Bottom Bracket (46mm Nominal Inside Diameter x 79mm wide). This type of Bottom Bracket is almost exclusively used on Cervelo and Factor bikes.

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 fitted as standard. Ultra Low Friction in Road Applications and Fully Sealed 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

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.

Support

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

Shimano

Frame

BBright

Manufacturer

Hambini

5 reviews for Hambini Racing BBright Bottom Bracket Shimano Crankset (Silver)

  1. Nick

    I fitted a custom Hambini BB (slightly undersize due to Cervelo’s daft manufacturing tolerance) to my Cervelo R5. It went in perfectly. I followed Hambini installation instructions rigorously – after all what’s the point in paying for a properly engineered product if you fail to install it correctly. I was pleasantly surprised by the ease of installation and the way it would spin with no load. So far so good. The day after installation I took the bike out for quick ride (67miles). Some hills, some sprints, some steady riding. The BB performed brilliantly – it felt smooth and solid. How much was physical and how much was in my head? Who knows. It’s difficult to describe the feeling but I’v tried about five different BB in this frame and this is the best yet – it just feels good to pedal the thing. It maybe the custom build that makes it fit perfectly – it may be the design that ensures alignment. It may be the bearings. Easily the best BB I’ve ever had. In addition Hambini has been ever helpful – answering many questions and providing advice. His ability to provide a custom product takes things to another level. He does not try and sell you something but provides the engineering rationale. No marketing BS. I’d have no hesitation in recommending the use of a Hambini BB. Nick

  2. Glenn Solevad

  3. Fitzroy Gillespie

    I have not received this unit. I ordered other products from the UK after i ordered this unit and have already received. It would have been nice if there was an option to select UPS or other delivery methods.

    Reply from Hambini:

    Fitzroy, when you ordered, you had the opportunity to select UPS. It was one of two options. You picked Royal Mail/Canada Post. This was in addition to a blue statement on the bottom of the website informing individuals of delays in the postal service. In normal times this parcel would reach you within 2 weeks but due to the Corona Virus lockdowns, this parcel is currently in a queue in Canadian Customs. I apologize for the inconvenience but I don’t think anyone could have predicted a Flu Pandemic would do this to the world.

  4. Sirparanta E.

  5. I H ROBSON

    Great product, however I ordered the wrong part, Hambini was very professional

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