Insight from a lifetime in the cycling industry RSS

The topic of ceramic bearings in cycling components seems to be a timeless discussion.  In articles published first by road.cc in 2015 and then again in 2019, the topic of ceramic bearings has again been republished on 24 May 2020 by David Arthur. This article recently came to my attention, and I was quoted several times throughout the article, and I thought my readers may be curious to find out if I still stand by my comments that David Arthur used in the most recent article. My answer is, "yes". My opinion remains the same, and so here is a reprint...

Read more

I have had the experience of training on a CANYON SPEEDMAX CF for more than 3 years.  With the launch of TARMACANDIRT I felt compelled to write a review of my experience.My CANYON SPEEDMAX CF did not come assembled because I took an early delivery of the frame, fork and handlebars, I purchased my own components, and assembled the bicycle.  Bicycle assembly typically reveals information about the design and manufacturing that is otherwise missed.  For example: are the holes clean, do the BB cups align, do the cables route through the bike without interference, are the press-fits and threads dimensional tolerances appropriate, or...

Read more

If there's one question that I am asked more than any other question, it's "how much faster is a TT bike than a Road bike?  To answer the question I went into the FASTER Wind Tunnel in Scottsdale, Arizona to find out.  FASTER is now closed; A2 Wind Tunnel in Mooresville, North Carolina is a great facility for testing cycling aerodynamics.  Comparing my Canyon Speedmax with my Canyon Ultimate: my lowest drag Road bike position (bar tops & hands close together, near the center) required 204.6250 watts to maintain 30 mph with a CdA of .2770 compared to my lowest drag...

Read more

Wheel-X was manufactured in a facility in Mexico, off-site from the company’s USA headquarters.  One of the steps in the production process was bonding a single-shear lap-joint between an overlapping portion of the carbon fiber rim sidewall and the aluminum rim channel. ASTM International, formerly known as American Society for Testing and Materials, is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services has a reference for adhesively bonded lap joints.   This single-shear lap-joint between the carbon rim sidewall and aluminum rim channel had multiple potential failure...

Read more