How much does a Reynolds 531 frame weight?
Standard gauge 753 for a 57cm : 1645 grams Standard gauge 531c for a 57cm : 1910 grams Standard gauge 531DB for a 57cm : 2050 grams For standard gauge tubes, and for frames with similar fittings and geometry, you can see, and often feel a difference in weight.
What is Reynolds 531 tubing made of?
Manganese Molybdenum
531 is a seamless tubing made of Manganese Molybdenum, better than standard Cro-Mo, but time has caught up with it a little as the top tubes from Columbus and Reynolds have a higher UTS (ultimate tensile strength).
Is Reynolds 520 heat treated?
Reynolds 520 – CHROME-MOLY cold-worked steel: The Reynolds “520” range uses the same alloy, made under license for us in Taiwan and subject to the same quality standards. The same 0.30% carbon steel chemistry as our 725 range but without the heat-treatment process.
What is Reynolds 531?
Reynolds 531. Reynolds 531 (pronounced ‘five-three-one’) is a brand name, registered to Reynolds Technology of Birmingham in the United Kingdom, for a manganese – molybdenum, medium-carbon steel tubing that was used in many quality applications, including race car chassis, aircraft components and, most famously, bicycle frame tubing.
How much does a 531 tube weigh?
The standard 531 set is the 531c racing tubeset which makes for a frame around 4 1/4lbs. This builds up into a fine responsive frame ideally suited to road racing, but lacking a little stiffness in the bottom bracket area.
Why was Reynolds 531 tubing used in WW1?
Its first government contracts of World War One were for tubes for military bicycles and motorcycles but in 1916 its precision tubing began to be used for aircraft. That year was one of the most important in the company’s history as Reynolds put the development of 531 down to its experience in aviation.
What is the difference between a 531 and 531c?
– Gore Vidal giving estimated frame weight differences of 2.05kg and 2.2kg. 531 cames as “double butted” and “SL” until about 1985 when it was re-badged “531C” and “531” pro respectively, as far as I know the product remained unchanged. “ST” was also available and was the touring version, slightly heavier and about the same weight as Columbus “SL”