The Bicycle Wheel is a treatise on wheelbuilding by Jobst Brandt. Overview. The Bicycle Wheel is an educational book that explains the structural theory of. This is the 3rd Edition of Jobst Brandt’s classic work, a necessary reference for any aspiring wheel builder and a handsome addition to any cycling lover’s library . Tributes have been paid from all quarters of the world cycling community to engineer and author of The Bicycle Wheel Jobst Brandt, who has.
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If you bend one, it breaks like uncooked spaghetti! Don’t worry about the left-side tension on rear wheels. Based on years of experience, the whewl has divided the book into three parts. I would like to know what Brandt thinks of these.
He is sorely missed in discussions of bicycling issues.
You could also use the entire bicycle when truing either wheel — best if you start by lowering the bicycle onto the wheel so the bicycle’s weight rests on the wheel and centers it — or at least make sure that you pull the wheel up all the way into the forkends.
I have seen such a wheel. This pattern is suitable only for front wheels that don’t use hub brakes.
Spokes come in straight-gauge or swaged butted styles. It you want information on whimsical patterns such as the crow’s footet.
The Bicycle Wheel – Wikipedia
This approach is not quite as convenient as using professional tools, but the results can be just as good. A friend and I inspected the bike. If you ever notice a radially-spoked front wheel — or, actually, any front wheel — mysteriously going slightly out of true, stop, get off the bicycle and call for a ride home or to a bike shop.
Learning to build wheels is an important milestone in the education of an apprentice mechanic. If the hub has a label running along the barrel, it should be located so that it can be read through the valve hole. This wheel is twice as stiff for deflections to the right as to the left. The spokes of the rear wheel changed angle noticeably, pinging as they rotated in the spoke holes of the hub, and ringing with rising musical pitch like an electric guitar when the player pulls up on the tremolo bar.
T riathletes and HPV racers have used wheels with fairings for many years. Carbon fiber spokes turned out to be brittle and dangerous. Part one, ‘Theory of the Spoked Wheel’, examines how a wire wheel supports various loads, what causes wheel failure, what aspects of a wheel confer strength and durability, discusses each of the individual components that make up a spoked wheel, and examines wheel design.
Once the nipple has turned far enough, the twist in the spoke will give enough resistance that the threads will start to move, but the spoke will remain twisted.
This will be a 36 spoke, cross 3 wheel. The rim tape must be just wide enough to fit the bottom of the rim. I can now get a good idea of the quality of a wheel by looking at the parts its made from and plucking the spokes.
In the rim, there will be two spokes, two empty holes, two spokes, two empty holes Now that I had some experience, I wanted hints on how to make my wheels even better. If you use the thin spokes, you can raise them to their optimum tension without their putting undue stress on the hub. I’m not sure now why it took me so long initially to figure it out.
Just as you can break a paperclip by bending it back and forth a few times, you can break spokes by flexing them back and forth by a much smaller amount, millions of times — even if they don’t flex enough to take a permanent set.
Jobst Brandt’s The Bicycle Wheel
Translations of this article earlier version: Sep 11, Ben rated it really liked it Shelves: Lists with This Book. It will give a bumpy ride, and there is a risk of a blowout. It then follows up with clear directions for assembling wheels and repairing damages to wheels. Another positive feature of the book is the great wealth of technical information.
Repeated cycles of tension and slackness cause these spokes to fatigue at the bfandt, and ultimately break. Single- and triple-butted spokes solve one of the great problems of wheel design: He writes “I don’t know what advantage is gained by machining rims other than expense, making the side walls variably thin and jobs little wear margin.
Drive wheels and wheels with hub brakes should never be radially spoked. I might better have taken the loss of true as whesl red-flag warning. If you need to do your own calculations, there are several spoke-length utilities available on the Web, including:. Substitute “32” where the instructions say “36” Substitute “16” where the instructions say “18” Substitute “8” where the instructions say “9” Substitute “7” where the instructions say “8” If you’re building a wheel with a different cross pattern, similarly add or subtract the appropriate number.
Ford engineers must have carefully considered all these factors as they designed this wheel. This is easily the best book written on the physics of bicycle wheels.
If you are on a tight budget, read the section of this article on truingso you know the technical terms, and then check out the section near the end of this article on improvised tools. Sep 29, Carlon rated it really liked it.
If a spoke does break, the wheel generally becomes instantly unridable. If you read this book before building your first wheel you’ll approach it with confidence: Please note, we now have the German edition as well as Bicucle. In the illustrations for this article, the trailing spokes are shown in red and yellow. The use of musical pitch to determine spoke tension is explained by John Allen at https: This is the first spoke to be installed in building the wheel.
Because metal at or near the yield stress has a short fatigue life, these stresses must be relieved to make spokes durable. One day, I just happened to be sitting on the floor next to my tandem, glanced at the front hub and noticed a crack extending along the line between several spoke holes. If bcycle rim is welded, grinding away excess metal may have left a slight hollow.