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Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

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Old 03-30-09, 07:52 AM   #1
ssllgg11
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What do these terms mean?

I've recently gotten into biking more seriously, and with that I've realized that I don't know what the hell certain words or terms mean.
For example, when I read about a frame, I see words like butted, double-butted, offset horizontal drop out, forgedeleived
and so on.
Please help me out, and post what these mean and any other things that have to do with frames.
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Old 03-30-09, 07:56 PM   #2
lverhagen
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Welcome! When I was new to cycling I just cruised around the internet and slowly learned the meaning of all the terms.
Butting generally refers to the way variable wall thicknesses are made into a frame to to achieve lower weight while maintaining strength. Double butting refers two having to different wall thicknesses, usually thicker at the ends than in the center.
Horizontal dropouts have a slot for the axle that is horizontal and often long enough to allow ease of chain tensioning.
It consists of uniform heating of a structure to a suitable temperature below the transformation range, holding at this temperature for a predetermined period of time, followed by uniform cooling.


From http://www.ayzar.com/english/estabilizado.html :

Forge relieving is applied to relieve stresses that remain locked in a structure as a consequence of a manufacturing sequence, welding, cutting, smelting, initial mechanized or forge.
This treatment supplies to pieces a great dimensional stability previously to the application of:
  • other heat treatments
  • mechanized
  • assemblies
The control system of these equipments enable us to process the pieces at any range of temperature.
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Old 03-31-09, 12:02 PM   #3
MichaelW
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Lots of framebuilders bits are named here.
There is a good bike glossary here
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Old 03-31-09, 08:13 PM   #4
ssllgg11
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Thanks a lot, both of you. The internet glossaries helped a ton.
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