Journal

Calfee Bamboo Bike 2

More about Bamboo

  We offer our bamboo bicycle frames in all frame styles and geometries. We enjoy this flexibility as we do not use forms or molds to join the bamboo tubes. …

Turning Bamboo Into a Bicycle

A cycling entrepreneur has turned to the durable plant as a low-tech and affordable option for building bikes Bicycle designer Craig Calfee likes to talk about the time a film …

Grades of Carbon Fiber

Polyacrylonitrile Fiber There is a lot of marketing techno-babble out there with all the different companies getting on the carbon bandwagon.  The idea is to try and convince the general …

Fork Symmetry

Instability and Speed Wobble Overview Calfee Design has identified a cause of speed wobble (a.k.a. shimmy) and instability that can be prevented. Speed wobble is a dangerous condition that can …

Tetra Classic Adventure A

More about the Tetra Classic

Even bicycle enthusiasts and industry insiders are surprised to learn that Tetra was invented back in 1987 and only four years later was being ridden by Greg LeMond and his …

More about the Tetra 44

Even bicycle enthusiasts and industry insiders are surprised to learn that Tetra was invented back in 1987 and only four years later was being ridden by Greg LeMond and his …

More about the Dragonfly Classic

How did we do?  Consider this 10 page feature.  Please read this review of our Dragonfly published in the June 2011 issue of Road Bike Action.  Zap, Editor of Road …

Dragonfly 44

More about the Dragonfly 44

The use of boron fiber has come of age with its use in our high performance bicycle frames. Bicycle weights have dropped from 18 pounds back in the 1980s to …

Technical White Paper 1

Introduction Twenty years ago, choosing a road racing bicycle frame was simple…and limited. For light weight and a smooth ride there were Columbus SL and similar light gauge steels. Large …