Reynolds 520 Vs 531

What is Columbus Steel?

Columbus Tubi is a manufacturer of steel tubing used in bicycle frames, located in Settala, in the Province of Milan.

The company was founded in 1919 by A.L.

Colombo and was taken over by Colombo’s youngest son, Antonio, in 1977.

It is now a division of Gruppo SPA, which also owns the bicycle manufacturer Cinelli..

How do you identify Columbus tubing?

Columbus tubing may be rifled at the tube ends and at the fork end of the steerer tube on the inside of the tube. Very rarely, if the paint is very thin, you may be able to spot the Columbus bird that is stamped in the tubes near the ends, but this is most often obscured by the lugs or paint.

What is Reynolds 520 chromoly?

520 is the proprietary designation for a range of butted frame tubes made by Reynolds using a chromium molybdenum steel alloy similar to the AISI 4130 standard. Other manufacturers also make butted frame tubes of AISI 4130 chromium molybdenum alloy.

How do you identify Reynolds 531?

On a seat tube, the thicker butted section is only at the bottom, so the post is inserted into the “thin” cross section of the tube. The ends of most Reynolds tubes were stamped: This is usually most evident on the steer tube, but it sometimes can be discerned on other tubes as well.

What is a 531 frame?

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.

Where is Reynolds steel made?

BirminghamThe name has been synonymous with the British cycling industry since 1898, and it still manufactures tubing in its Birmingham factory today. The Reynolds company name stretches as far back as 1841, but it was the end of the 19th century when it moved into the bicycle trade.

Is Titanium stronger than chromoly?

Well-known member. Both have their place, Titanium is 1/3 lighter than Chromoly, it is also stronger than chromoly but more flexible (less Ridgid).

What does 4130 mean?

So in long form, 4130 means an alloy steel with chromium and molybdenum that has a carbon content of 0.3%. One thing to mention about the word “alloy” is that it’s more of broad term explaining the metal material is made of two parts. For example, you might find aluminum alloy for some parts of your bike.

Which Reynolds tubing is the best?

Conclusions. For 70 years Reynolds 531 was the faithful, go-to tubing of choice for almost all quality touring bikes. Because it is less suitable than others for TIG welding its been totally replaced in a market dominated by TIG welded frames from the Far East.

Are steel bikes slower?

You’ll ride slower and cover less ground with a steel frame- Because of the frame flex, heavier weight, and worse aerodynamics, you’ll probably ride at a slightly slower average speed when riding a steel frame. For recreational riders, commuters, and bicycle tourists, speed doesn’t really matter.

Are steel frame bikes any good?

Steel is significantly stronger and more durable than its aluminum counterpart, making it an excellent choice for mountain bikes. Steel-framed bikes are able to absorb more blows with suffering damage. If you are a safe rider who rarely falls down, this probably isn’t going to matter.

Are lugged frames better?

In most lugged steel frames, the lugs have a simple pointed shape. … Lugs also reinforce the joints, often resulting in a stronger frame, this gives lugged frames in particular an advantage for touring cyclists.

What is True Temper steel?

True Temper is one of very few steel manufacturers producing the thin, variable-walled and precision balanced tubing that nice bikes require. … They also show up on world touring rigs, light but tough cyclocross bikes, and heavily abused mountain bikes.

What is the best steel bike frame?

Best steel road bikesCondor Super Acciaio Disc. Made in Italy from custom Columbus Spirit HSS tubing, the Super Acciaio has been created by venerable London bike sellers Condor Cycles. … Cinelli Vigorelli Disc. A proper scrappy little fighter of a bike. … Ribble Endurance 725 Disc. … Genesis Equilibrium Disc. … Mason Resolution 2.

What is Reynolds steel?

Reynolds worked closely with Carpenter Speciality Alloys to develop 953. … 953 is based on a specially developed maraging steel stainless steel alloy that can achieve a tensile strength in excess of 2000 MPa (853 is around 1400 MPa), giving a good strength-to-weight ratio.

Where are Ribble Cycles made?

Based in Preston, the company dates back to 1897. Bikes from Ribble are masterminded at their UK headquarters, produced in the far east and then built up back in the UK in Preston and Birmingham.

Is chromoly stronger than steel?

Chromoly is stronger than normal steel, weight for weight, and is commonly used to make high-end bicycle frames, roll cages for race cars, and for fuselages on small aircraft. … This means that manufacturers use less of the steel so the strength is the same, but the weight is reduced.

How is butted tubing made?

After heating to over 1000 C, a hole is pierced through the center to form a very thick-walled tube. The wall thickness and diameter of this tube are then progressively reduced by hot rolling and cold drawing until it is sized for the butting process.