SKF

Zero Friction Cycling, Fake Engineering
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The Murky World of ZFC Zero Friction Cycling: Botched Testing, Frigged Results

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Zero Friction Cycling, run by former policeman Adam Kerin, presents itself as a trusted source for friction-reducing products, but behind the scenes, a lack of engineering knowledge and unverified testing methods raise red flags. Despite requesting sensitive industry data without doing foundational research, Kerin’s approach appears more focused on marketing high-margin products than adhering to rigorous engineering standards. His testing setup is flawed, and the data he presents, particularly in support of ceramic bearings and chain lubricants, lacks scientific backing. Is this the work of an expert or just another slick sales pitch?

Campagnolo Super Record Ultra Torque
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Teardown: Campagnolo Ultra Torque Crankset Mechanics explained in Depth

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Campagnolo cranksets have a reputation of being well engineered and robust but they are not without their problems and quirks. This post explains one of those in detail which surrounds the myths of the preload system, the “safety clip”, the system stiffness (or lack of it) and the involved nature of a bearing replacement. Campagnolo Ultra Torque is found on many of the upper range of Cranksets including the Super Record and Record.

Bike Bearing Grease: A Practical Guide to Bearings and Assembly for Bikes
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Bike Bearing Grease: A Practical Guide to Bearings and Assembly for Bikes

Byadmin

Introduction Grease is an often talked about but little understood. It can have a significant impact on performance on a bike specifically in the area of transmission frictional losses (watts). This guide covers the practical aspects of using grease as a lubricant and as an assembly aid. Following a number of questions arising from a…

Bearing Terminology
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Ceramic Bearings vs Steel Bearings: An Engineering Analysis

Byadmin

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…

Bottom Bracket Pressfit and Creaking, an Engineering Analysis
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Bottom Bracket Pressfit and Creaking, an Engineering Analysis

Byadmin

If you are reading this you will have probably already come across the numerous posts by various individuals in Internet forums across the web. The issue of creaking bottom brackets has been blamed on the introduction of pressfit and directfit bottom bracket standards, where bearings either push directly into the bike frame or push into…

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Testing to Find the Fastest Bicycle Wheel Hubs

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The aerodynamic performance of wheels often grabs the headlines and the marketing budget but the reality is the hubs and the bearings within them will have more of a performance differential for the average cyclist. As an example, the power differential between wheels of an equivalent depth at speeds of less than 35km/h will only…

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