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| Sheldon Brown |
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Proudly Presents: |
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Costly Reynolds 531, Columbus, Tange, Vitus butted bicycle frame tubing -- thick-walled at the ends for strength, thin-walled in the middle for light weight -- is an essential element of a top custom framebuilder's masterpiece. A vintage, silver-brazed steel-frame bicycle with butted tubing is, well, priceless.
Oh, Horror!
But -- a moment of carelessness when parking a bicycle can quickly result in tragedy. A thin-walled frame lands on a fencepost, stump or rock. BOOM, it's dented, ruining the bicycle's appeal and value.
Bicycle tube with nasty dent |
What is to do? You must remove that dent! But -- how? Some dent-removal tools use "frame blocks" to compress the tube from the outside. This is a wimpy, ineffective method only used by retrograde, old-school mechanics. After all, the dent is to the inside. You might stuff a steel rod down a seat tube or head tube, to push the dent out. But it only gets pushed partway out. |
A framebuilder may replace the entire frame tube -- a trick to boost profits. The damaged tube has to be sawed apart, remnants ground away, new tube brazed in, the entire frame repainted. This can cost well over $1000 and you won't have your bike back for weeks or months! How can you be sure that the replacement tube is of the same quality as the original?
Our System removes those pesky dents in a |
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