Hambini Racing BB92 Bottom Bracket Shimano Crankset (Black)
£221.00 Ex. VAT
This bottom bracket is designed to interface a Shimano 24mm Hollowtech 2 MTB Crankset (Deore, SLX, XT, XTR) and Shimano Compatible (Some ROTOR and FSA) 24mm Cranksets with a bike frame that uses a BB92 Bottom Bracket (41mm Nominal Inside Diameter x 92mm wide).
Out of stock
Description
This bottom bracket is designed to interface a Shimano 24mm Hollowtech 2 MTB Crankset (Deore, SLX, XT, XTR) and Shimano Compatible (Some ROTOR and FSA) 24mm Cranksets with a bike frame that uses a BB92 Bottom Bracket (41mm Nominal Inside Diameter x 92mm wide).
Hambini Racing Bottom Bracket Overview
- 20% stiffer than Hambini Standard Bottom Brackets
- As used in the Pro-Peloton
- 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 in the United Kingdom. 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.
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.
Popular support topics:
- Installation of a Pressfit Hambini Bottom Bracket
- Servicing of a Hambini Bottom Bracket (Bearing Service)
- Removal of a Hambini Bottom Bracket
Still need some help?
You can contact support on support@hambini.com or use the Contact Form
12 reviews for Hambini Racing BB92 Bottom Bracket Shimano Crankset (Black)
Q & A
it should do provided you do not have any obstructions.
It fits perfectly. I have the same bike.
30mm or 29mm into a 41mm aperture is not recommended
Ask a question
Your question will be answered by a store representative or other customers.
Thank you for the question!
Your question has been received and will be answered soon. Please do not submit the same question again.
Error
An error occurred when saving your question. Please report it to the website administrator. Additional information:
Add an answer
Thank you for the answer!
Your answer has been received and will be published soon. Please do not submit the same answer again.
Error
An error occurred when saving your answer. Please report it to the website administrator. Additional information:
Steven W. –
Fast and personalised service.
I requested some advice on bearing choice and I was given excellent advice.
Small business at it’s best, Thanks.
Greg –
Brilliant product, no more creaking. Highly recommend, worth every penny!
Eryk –
perfect fit and sooooo smooth
Sven Bogaerts –
LLOYD –
Love this stuff
Daniel –
Wasn’t necessary but I got caught up in the moment and have this on Giant Anthem Advanced 1, with XTR cranks and power meter. I just like nice things and like supporting people who build things properly so I forked over the extra cash. Insignificant extra cost compared to original cost of the bike.
Seance765 –
You will immediately notice is worth the money you pay. Extremely solid premium BB, you will not be disappointed by any means. It feels you added so much to your frame. Excellent customer service as well. The only thing that seems to me it can fail is how well the delrin sleeves (top hats) will protect against contaminants and how long will the last without maybe any signs of play, haven’t use it long enough to test them.
Robert S. –
simple perfection.
Anonymous –
It’s engineering perfection
Jeremy B. –
Top product !
First, Shopping and shipping were straight forward : easy and quick. Package was delivered rapidly with accessories for mounting. Quality of manufacturing is visible. Mounting was as explained (check diameter, clean, apply primer, push up to 1 cm before completion, apply loctite, finalize pushing, let dry 48h). Then came the tricky part for me due to a gxp crankset : adjusting gap play with shims, just enough to avoid freeplay. From this moment it’s perfect. I dismount crankset since then to change chainring and i checked bearings and adjusment : only a small cleaning and that’s all !
peter.hughes –
Nearly three years after fitting this BB to my training MTB (hard, winter miles included) the BB is still as silky smooth as the day it was fitted. I am convinced the precision engineering (and careful fitting) are key to long life BBs. I will be ordering a second Hambini BB for my other bike.
Peter Hughes –
The best BB on the market