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.
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Winspace T1500: 5000km Review
The winspace T1500 is the flagship Chinese Aero road bike. This review documents 5000km of general riding including commuting, racing and training.
Winspace T1600 – First Look and Mechanical Teardown
The Winspace T1600 is a carbon aero frameset that offers serious engineering quality at a price that makes most Western brands look absurd. This review takes a detailed look at the frame from an actual engineering standpoint, not the usual vague “ride feel” commentary from influencers and shop mechanics. With clean internal routing, tight manufacturing tolerances, and consistent carbon layup, the T1600 delivers performance without the marketing fluff. I have been riding the frame extensively with no issues to report so far. Everything fits, everything works, and nothing creaks. It is designed by people who understand structural mechanics, not branding. Wind tunnel test results will be covered in the next video. If you are tired of being sold £4,000 frames based on Tour de France photos and buzzwords, the T1600 might be the reality check you need. Especially if you’re still taking advice from someone trying to crowdfund a bike shop refit.
Engineering Analysis: Grease or Retaining Compound
This article is a technical discussion of the pros and cons of using grease or retaining compound for installation of bearings and bottom brackets. A general trend in recent times has been a move towards slacker fits. This improves performance and service life.
Bearings | Bottom Brackets | Popular | Reamings | Technical
T47 Bottom Bracket: Engineering Guide (Threadfit)
T47 is examined in engineering detail. Some of the quirks associated with the standard, the weights and the frame geometry limitations are discussed. Trek, Felt and Factor variations of T47 dimensional standars are covered.
The Murky World of ZFC Zero Friction Cycling: Botched Testing, Frigged Results
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?
Bottom Bracket Bare Shells T47 and BSA
A couple of custom bottom bracket shells were designed and made for an individual in New Zealand. The customer was a carbon bike frame and repair centre on the outskirts of Auckland. The first was a replacement BB shell for a Colnago frame. This frame had damage to the existing carbon shell to the point…