Differences

This shows you the differences between two versions of the page.

--- tubing:start [2024/03/18 14:53] – mtbtimeline
+++ tubing:start [2024/04/22 17:04] (current) – mtbtimeline
@@ Line 1: / Line 1: @@
-<wrap centeralign> {{c2020.jpg?100}} {{r531_1989.png?100}} </wrap>
+<wrap centeralign>
+{{c2020.jpg?50}}
+{{r531_1989.png?50}}
+{{t2024.jpg?50}}
+{{c72.jpg?50}}
+{{r531_1972.png?50}}
+{{t81.jpg?50}}
+{{c75.jpg?50}}
+{{r531_1981.png?50}}
+{{t84.jpg?50}}
+{{c77.jpg?50}}
+{{r531_1995.png?50}}
+{{t93.jpg?50}}
+{{c78.jpg?50}}
+{{c91.jpg?50}}
+{{c95.jpg?50}}
+</wrap>
@@ Line 7: / Line 23: @@
 ===== Tubing =====
-Before the the coming of [[https://en.wikipedia.org/wiki/Carbon-fiber-reinforced_polymers|carbon]] in 1990, all mountain bikes started their life as a box of metal tubes.  Before [[canon:start|Cannondale]] and [[klein:start|Klein]] made aluminum commonplace in 1984, 99% of all MTBs were built from steel tubing((Other early Al frames include: [[cc:start|Cunningham, 1978 -> 1993]], [[snr:start|Speed & Research, 1982]], [[crotch:start|Crotch Rocket, 1983]], ...)) from dozens of suppliers, from gas pipe to Reynolds.  MTBs with a quality steel sticker were a cut above the rest, and probably a lot lighter as well.  How important are these stickers, other than in dating the bike?  A full materials science primer will follow, but for now, consider two bicycles:
+Before the the coming of [[https://en.wikipedia.org/wiki/Carbon-fiber-reinforced_polymers|carbon]] in 1990, all mountain bikes started their life as a box of metal tubes.  Before [[canon:start|Cannondale]] and [[klein:start|Klein]] made aluminum commonplace in 1984, 99% of all MTBs were built from steel tubing((Other early Al frames include: [[cc:start|Cunningham, 1978 -> 1993]], [[snr:start|Speed & Research, 1982]], [[crotch:start|Crotch Rocket, 1983]], [[kettler:start|Kettler, 1984+]]...)) from dozens of suppliers, from gas pipe to Reynolds.  MTBs with a quality steel sticker were a cut above the rest, and probably a lot lighter as well.  How important are these stickers, other than in dating the bike?  A full materials science primer will follow, but for now, consider two bicycles:
   * A 2024 [[https://www.homedepot.com/p/Huffy-Classic-Deluxe-26-in-Men-s-Cruiser-Bike-26648/304490184|Huffy Classic Deluxe]], complete with fenders, basket, rack and a chain guard.  Single speed.
@@ Line 78: / Line 94: @@
 ==== Choose ====
 |< 100% 20% 20% 20% 20% 20% >|
-|@#F0F0F0:[[{tubing:r531_1989.png?0x100}reynolds|Reynolds]] | @#F0F0F0:[[{tubing:c2020.jpg?0x100}columbus|Columbus]]|@#F0F0F0:|||
+|@#F0F0F0:[[{tubing:r531_1989.png?0x100}reynolds:start|Reynolds]] | @#F0F0F0:[[{tubing:c2020.jpg?0x100}columbus:start|Columbus]]|@#F0F0F0:[[{tubing:t2024.jpg?0x100}tange:start|Tange]]|@#F0F0F0:|||
+</div>
+<div column 100% #decals>
+----
+===== Decal Timelines ====
+{{page>:timeline_reynolds}}
+{{page>:timeline_columbus}}
+{{page>:timeline_tange}}
 </div>
@@ Line 226: / Line 251: @@
 This assumes that Reynolds was using the Birmingham Wire Gauge Standard((The BWG is averaged in [[https://associationofanaesthetists-publications.onlinelibrary.wiley.com/doi/10.1046/j.1365-2044.1999.00895.x|The story of the gauge]].  There were 28 different Birmingham Wire Gauge standards.  The Reynolds Tube Co. Ltd. probably had their own.  See "The Story of the Gauge" and [[https://www.engineeringtoolbox.com/BWG-wire-gage-d_508.html|engineeringtoolbox]])).
-The shorthand for these buttings is written as 1/7/1 for "A" or 8/5/8 for "531" tubing.  Bicycles are often made with a mix of buttings, depending on size, style and rider weight.  Today, the thinnest Reynolds 953 is available .55 x .35 x .55mm for a 1 1/8" top tube((The mix of imperial and metric measurements for bicycles persists.  Mountain bike wheels are in inches.  Mountain bike wheel hubs are in millimeters.  And frames are sized in cm or inches but frame tube widths are in inches.)).  That is, if you can find 953, as production has been halted on that strongest of their tubing.  Reynolds 531 is also no longer produced.
+The shorthand for these buttings is written as 1/7/1 for "A" or 8/5/8 for "531" tubing.  Bicycles are often made with a mix of buttings, depending on size, style and rider weight.  Today, the thinnest Reynolds 953 is available .55 x .35 x .55mm for a 1 1/8" top tube((The mix of imperial and metric measurements for bicycles persists.  Mountain bike wheel rim diameters are in inches.  Mountain bike wheel hub widths are in millimeters.  And frames are sized in cm or inches but frame tube widths are in inches.)).  That is, if you can find 953, as production has been halted on that strongest of their tubing.  Reynolds 531 is also no longer produced.
 Gauge is old British wire measurement ostensibly in units of a fraction of an inch.  Sort of.   There are 55 different sets of gauges from sheet metal to music wires.  Some gauge examples in fractions of an inch: