Bicycling Science [Brossura]

Disclosure: I am an interested party (contributor), so you may take my 'star' rating with a grain of salt. My main message is to make a point that I have also emailed to Amazon.

As of May 1, 2004 the other customer reviews posted for this title are somewhat misleading, because they refer only to the much older (second) edition. The third edition, published April 2004, is dramatically enlarged and updated -- a completely new book based on a tremendous amount of recent work. Dave Wilson and I have attempted to address all the issues to be seen in those reviews, plus many more, we hope successfully.

In this 5-year process every chapter was rewritten or even replaced outright. A great quantity of new material on history, physiology, speed calculations, aerodynamics, steering theory, human powered vehicles etc. is available nowhere else.

I encourage any scientifically curious cyclist, or bicycle industry engineer, to contribute a genuine review of the third edition, so potential readers can learn about this distinctly different book.

Reviewed by Dr. Andreas Fuchs, Berne, Switzerland, August 2004

Long-awaited for Bicycling Science 3 is finally here: 22 years after the second edition was originally published! A main question for the reviewer was therefore: Will the 3rd edition of Bicycling Science consider the key-developments that happened in this field during the full age of the desktop computer in a wisely weighted manner? This question is a fair one since Bicycling Science ranks among the most important books in the field of cycling!

The new, third edition of Bicycling Science (BS) contains main chapters about: History, human power generation, thermal effects on power production, power and speed, bicycle aerodynamics, rolling (tires and bearings), braking, steering and balancing, mechanics and mechanisms (power transmission), materials and stresses, unusual human-powered machines, and human-powered vehicles in the future.

Compared with BS2, BS3 has relatively more content in the chapters "human power generation" and "steering and balancing". BS3 discusses relevant results of work physiology in much more detail than BS2. Since bicycling science is a wide field it is a wise decision to involve co-authors; in the "steering and balancing"-chapter Jim Papadopolous vast experience with this main topic shines up and is, at least by the reviewer, very much appreciated!

After reading BS3, the question put up by the reviewer at the beginning of this review receives an overall positive answer: D.G. Wilson lists many new references; as a very serious observer of the field of bicycling science Wilson identified the important developments and discusses them accordingly. The main omission detected by the reviewer is the absence of the topic "suspension" high up in the hierarchy of the chapters of the book. Also, the hydraulic actuation of brakes would have deserved a more prominent position.

Apart from that, the book covers bicycling science as what it is today very well! BS, if it was an academic discipline, was defined by engineers and physicists; one focus that is therefore still missing too much is the one of human factors and ergonomics. By saying that the reviewer does not at all negatively criticize BS3... he just likes to point out a weakness in the bicycle research area for which neither D.G. Wilson nor J. Papadopoulous are responsible, of course!

Conclusion: The 3rd edition of Bicycling Science is a noble successor of BS2 and assures that The MTI Press's Bicycling Science remains in the top ranks in cycle literature!

The reviewer is physicist and is since many years actively involved in the study, development and promotion of modern forms of cycles. He could therefore be called "an expert" in the field of bicycling science. Main fields of interest are velomobiles, power-assist drives and human powered vehicles dynamics, especially aerodynamics.

Prof. Wilson is well-respected in the engineering community, and this book is the best we have on the topic. Alas, even though Americans can land a man on the moon, we don't currently have a comprehensive, accurate computer simulation of the bicycle, rider, terrain, and atmospheric condition suitable for design optimization. Bicycle science is still very empirical! Contrast this with automotive engineering, aerospace engineering, watercraft engineering, and rail travel engineering (although to be fair, there is no Defense Department money for bicycle advancements). As a systems and mechanical engineer in industry (but not the bicycle industry) I've written numerous computer simulations for all kinds of machines and processes; my engineering doctoral dissertation was on the detailed computer simulation of a modified gas turbine engine (published as Theory and Design of the New Rational Combustion Engine)--so it rather amazes me that we don't have something comparable for bicycle design. Prof. Wilson candidly states on p. 365 that "...expert application of engineering methods has played very little part in bicycle design." and on p. 282 contributing author Papadopoulos states that "...most [dynamic] analyses are incorrect, either because of faulty methods or because of errors in algebra" (and this at a time when theoretical physicists are promolgating theories to the thirteenth decimal place).

The authors present some of the simple equations, but don't number them, and there are some symbol mistakes (e.g., on p. 242 an equation is missing a couple of divisor signs and lacks a negative sign at the beginning). Symbols are defined at the end of the book, rather than at the beginning or end of each chapter. For most scientists and engineers, there are far too many words, and far too few equations in this book (but that's more the fault of the low level of development of this discipline, 120 years after the Starley safety bicycles were introduced).

End-of-chapter references and notes are excellent, as are the diagrams and figures (except that Fig. 11.30 is apparently mis-labeled). There is a history timeline at the back of the book, but it stops at 1934. Useful Web-site addresses are given. However, no comparative design information is given for tire tread, frame structure, handlebar type, and suspension layout. What's better: a seat suspension post or rear wheel suspension?--Not answered. Saddle height is discussed, but not reach to the handlebars. The chapter on Materials and Stresses discusses only unsprung bicycles. Wilson states correctly (on p. 381) that "triangulation" prevents frame collapse (unlike quadrilateral designs) and many new mountain bikes feature such a design (just look at Specialized's current catalog).

Highlights of the book include the discussion of many alternative styles of human-powered vehicles, including recumbent bikes (Wilson's preferred design), aircraft, and watercraft. I especially like the idea of rail bicycles--this has got to be the most efficient form of transportation (with the possible exception of the Lewis-Adkins Regenerative Spiral-Drive Train, which is not discussed).

All-in-all this book is a good read, but if you're a bicycle engineer, the book won't help you much. A Google search on the Web finds only one link for "Bicycle Computer Simulation"--to a Taiwanese paper "The Construction of a Bicycle Computer Simulation Model for Riding Comfort"--let's hope that the fourth edition of Bicycling Science will be much more comprehensive and much more computer-oriented.