Hambini Bottom Bracket installed in a Cervelo frame
A Hambini bottom bracket user from Canada sent this link to their mechanic installing a Hambini BB into a Cervelo bike frame. The music and install are quite therapeutic!
Technical
Hambini Bottom Bracket in a Specialized Tarmac SL6
A Hambini BB user sent in this video of his Specialized Tarmac SL6 with a Hambini Racing BB30 to Shimano Bottom Bracket installed. As always, an unloaded spin test is not a good indicator of loaded performance!
Ceramic Bearings vs Steel Bearings: An Engineering Analysis
One of the most controversial topics in the cycling industry is with regards the topic of Ceramic bearings and whether they do or do not reduce friction dramatically in riding. This article will address some of the concerns and topics associated with this debate and quantify the numbers. Internal Bearing construction – Ceramic bearings are…
Wheels | Aerodynamics | Popular | Technical
Testing to Find the Fastest Bicycle Wheels
Precursor – The critics and those with a vested interest I have added this section to the start of this blog post. The method this test uses is called transient state and it is used when aerodynamics are constantly changing. This is difficult to explain in detail in one blog post so I have linked…
Hambini Bottom Bracket Review by China Cycling
Joe from China Cycling reviewed a Hambini Bottom bracket against a Token Cycling bottom bracket
Hambini Bottom Brackets get roasted: Bottom Bracket Review and Quality Control
This video uploaded by youtuber Peak Torque shows a Hambini BB having it’s engineering tolerances judged. Some key points
Warning: Fake Loctite Products
One of my viewers contacted me about an issue he was having with the installation of a set of NTN bearings. He purchased what he believed to be Loctite 641 from an online supplier, this was promptly delivered with a label indicating it to be “high strength”. This is incorrect as high strength Loctite is…
Bottom Brackets | Bearings | Reamings | Reviews | Technical
Hambini Roasts: Cervelo
If you are about to buy a Cervelo bike, watch this video. It shows the appalling tolerances the bike frames are made to. The bottom bracket pressfit specification is so bad, neither NTN or SKF will warranty their bearings in it. This particular frame had misalignment between the two halves of the frame body.
Pressfit vs Threaded Bottom Brackets
There are various camps out there on the internet that swear by threaded bottom brackets as a means to avoid creaking. This video below shows the pro’s and con’s of both.
Specialized OSBB – Engineering Guide
Introduction A question that crops up frequently is with regards to Specialized’s OSBB bottom bracket and what size it is exactly. The short answer is OSBB comes in 3 variants which are all called OSBB. 46×61, 42×68 and 46×73. A summary table is below, with the detailed drawings below that. Variant (Diameter x Width) (mm)…
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