Sunday, December 11, 2016

Columbus Steel Tubing hierchy

Tube suppliers


Cycling - Columbus Tubing

Columbus XCr: 
In cooperation with Trafiltubi and Aubert & Duval, the new Columbus seamless tube set in stainless steel named XCr, was created. Starting form a specific request of the military industry, looking for a valid substitute for cadmium plated temper hardening steels which could no longer be produced because of their highly polluting manufacturing process, a new martensitic stainless steel with high content of Chromium and Molybdenum and Nickel as alloy elements which increase the mechanical and weldability characteristics, was created. The martensitic main structure contains traces of austenite that reduces the possibility of crack formation especially during the welding process. The great weldability properties of the new XCr stainless steel, together with its high fatigue resistance and its extraordinary geometrical stability at high temperatures, make this material the natural element for welded structures, such as bicycle frames. Thanks to the high stiffness/weight and UTS/weight ratios (better than titanium and aluminium alloys) together with the elevated characteristics of corrosion resistance, it is possible to manufacture triple butted tubes to build extremely light and indestructible frames.

Columbus AIR: 
"Columbus Air was the Italian manufacturer's initial attempt at an aerodynamic tubeset. It dates from the early 1980's. The intial version used a teardrop shaped down tube, seat tube and seat stays in conjunction with an oval top tube and chain stays, and a round head tube. Later versions had teardrop shaped chain stays. The tubeset was designed primarily for time trials and aerodymanic efficiency and therefore it is not practical to compare it directly to other round, Columbus tubesets. However, based on tube thickness, the seat stays were equivalent to KL and the chainstays, seat tube and top tube were equivalent to SL, while the down tube was equivalent to SP. Due to the teardrop shapes the resulting frames weighed more than SL, but had less strength. The rear triangles in particular had a reputation for being whippy, due to the thin seat stays. However, this was considered acceptable given the intended TT use and aerodynamic advantages.Of particular note, the seat tube came in two versions. One with a standard round top end, to accept a normal seat post and another which carried the teardrop section right to the top, requiring a teardrop section seatpost. If you have the latter, you may have some difficulty finding a seatpost, unless it is being provided with the frame.Regarding componentry, most frames built with this tubing were outfitted with Shimano Dura Ace AX, or less likely, 600AX. Campagnolo did not have an aero group at the time and the Italian farme builders did not want to miss out on the aero bandwagon, in the event it turned out to be the latest craze."

Columbus Genius:
In 1991 Columbus introduced a new steel tubeset, the steel was called Nivacrom and the first tubing made from it was named GENIUS. GENIUS also used Differential Butted Shape butts (DBS) a new features in tubesets in which the shape of the butt actually follows the area of the tube where most of the stress is. It comes in a different shape on different places on the tubes. Columbus made butted ends on GENIUS shorter, so the whole set was the first one strictly designed for TiG welding. A wide selection of tube thicknesses and diameters allowed GENIUS tubing to be used in many different types of frame types.

Mid-90's saw the introduction of Thron. Thron is still popular, and is the immediate predecessor to Brain. It's just regular Cyclex, the standard Columbus steel for a couple of decades, but has shorter butts, is a little manipulated, and has an OS version. CrMo, butted down to 0.5mm

Brain: Introduced mid-late '90s, next step up from Thron, ~Reynolds 531, so mid-high range

1996: NEMO, of Nivacrom, basically similar to EL-OS, but differentially butted, rather than symetrically, the butted sections are shorter, and with a slightly thinner tube section at the ends.

1999: Columbus introduces THERMACROM the most innovative cycling purposed steel: It gives incredible lightness and the most durable, high performance mechanical characteristics.

2000: Columbus introduces STARSHIP: a 6000 series aerospatial HT light aluminum alloy that will allow the lightest frames ever made together with the highest mechanical characteristics. Starship sets itself at the top becoming the reference point for any superlight, superstiff road racing or mtb frame.

2002: Columbus launches XLR8R a new 7000 alloy. As good as Starship, XLR8R introduces the concept of Multi Shape Damping Effect.

2003: Custom made frames in carbon fiber are no longer a dream. Columbus introduces XLR8R Carbon, a series of carbon tubes made for road racing competition.

2004: Columbus introduces Spirit. Steel is coming back in the cycling field with this innovative, high performance tube-set. In the mean time, the range of carbon fiber frame kits (rear stays and forks), widens and becomes a core business of the Columbus production.

Zona (0.7-0.5-0.7). In order to offer a tubing only 0.7mm at the butt, Columbus developed a reduced price Nivacrome that is 1000 Newtons/square meter tensile strength. This compares to the 900 used in Brain OS (and old SLX) and 1200 used in EL-OS, Genius, and Torelli/Nemo 747.

Neuron (0.7-0.5-0.7). This is a very sophisticated tubing, much finer that one would guess from the 0.5mm wall thickness. Columbus pulled out almost all the stops to make a lightweight 0.5mm tubing, using zone butting, elliptical butting, the works. The result is a tubing that is lightweight, yet very stiff. Mondonico continues to offer frames made of Neuron because it makes a good, stiff, light frame. This tubing still has a very devoted following among serious steel frame lovers.

Genius, EL-OS. (0.7-0.4-0.7). These sophisticated tubes are comparable to Torelli/Nemo 747 in the front triangle. They exceed Torelli/Nemo specification in the rear triangle. These tubesets have double-butted chainstays that are drawn down to 0.4mm. We were not able to offer that in our tubeset and keep the price as low as we wanted. EL-OS is no longer in the Columbus catalogue, but Mondonico has it drawn for his EL-OS monostay. The longer traditional butts of EL-OS offer some performance advantages. The slightly greater mass at the head tube joints make the front end of the frame a bit more stable, or as one Italian said, "robust".

Information from 1989 Columbus catalog:

MAX: 1987; Tubeset for special racing bikes made from the exclusive Nivacrom® steel with exceptional strength characteristics.The elliptical cross-sections are oriented in such a way that the major axes are directly opposed to the highest active and passive stresses.This set has been designed to optimize efficiency under the demands of extreme bads: sprint, time trials, climbingand strong centrifugal acceleration when descending. Nivacrom Steel - Weight: 1900 g

EL: Tubeset for time trials over even terrain, climbs and triathlon events. Super-lightweight thanks to the reduced thickness of tubing made from the exclusive Nivacrom" steel with a very high yield point.Double-butted tubes and oval, butted unicrown fork blades. Nivacrom Steel - Weight: 1670

EL-OS: Drawing on the experience with the EL set in the toughest professional competitions, this set features tubes of comparable lightness but with increased diameters for greater rigidity thanks to the use of the exclusive Nivacrom* steel. Nivacrom® Steel - Weight: 1800 g

TSX: Tube set for professional use, coupling maximum performance with reduced weight. It is particularly suitable for stage races of more than 150 Km over mixed terrain. In addition to butted walls, this set has five helicoidal internal reinforcements, thus giving greater rigidity against tube flexing and torsion. Cyclex Steel - Weight: 1945 g

SLX: "Superbutted" tube set specially designed for professional cyclists, featuring five spirals for greater rigidity in the joint area or the bottom bracket. Double-butted tube ends. Cyclex Steel - Weight: 1966 g

SPX: "Superbutted" tube set with increased thickness for professional cyclists. Ideal for larqe frames. Double-butted tube ends. Cyclex Steel - Weight: 2325 g

MS: Multishape, special tube set developed in collaboration with Gilco Design. Each tube profile is shaped to withstand specific stresses.Designed for competition use, it requires a precise riding style, and improves frame response to sudden shocks. Cyclex Steel - Weight: 1930 g 

SL: All-purpose, high-performance tube set for road races over even terrain. Double-butted tubes. Cold-rolled fork blades. Cyclex Steel - Weight: 1925 g

SP: Heavy-duty, high-performance set, especially recommended for large frames. Double-butted tubing. Cold-rolled fork blades. Cyclex Steel - Weight: 2215 g

CROMOR: Built of cold-drawn, chrome-moly butted tubing, this set is for the more demanding riders who favour versatile, high-performance light frames, but can also be used for larger frames. Cr Mo Steel - Weight: 2190 g (Note: Columbus Matrix was the first name for Colombus Cromor; Matrix became Cromo when Trek asserted their right to the Matrix name.)

GARA: Road set especially suited for amateur and touring cyclists who demand stout, lightweight racing frames. CrMo Steel - Weight: 2300 g

AELLE: Set for amateur and touring cyclists, built of cold-drawn, microalloyed-steel thin-wall tubing which makes it especially lightweight. CMn Steel - Weight: 2345

"ZETA was the cheapest tubeset that Columbus produced in the late 70s/early 80s. Straight gauge tubing like Aelle but not the same, Zeta was 0.9mm in thickness and Aelle 0.8mm. Carbon-manganese steel."

MAX OR: Set exclusively designed for the toughest off-road races. The oversized oriented elliptical cross-sections have thicknessesof as little as 0.5-0.6 mm, thanks to the exceptional characteristics of the exclusive Nivacrom® steel.The oversized unicrown fork blades are cold-rolled for greater elastic strength and resilience. Nivacrom® Steel - Weight: 2180 g

NIVA OR: Tube set for off-road competitions and high-performance riding.It combines the excellent performance of Nivacrom' steel with the traditional diameters. Nivacrom Steel - Weight: 2220 g

NIVA OR OVERSIZE: Set built of oversized, round-section tubing for maximum off-road performance. The butted tubes are in the exclusiveNivacrom® steel, which has made it possible to increase diameter while reducing thickness, and hence weight.These features, and in particular the oversized tube cross-sections, ensure excellent rigidityand good handling over rugged terrain, making this set idea for competitions. Nivacrom Steel - Weight: 2000 g

CROMOR OR: Set for off-road experts who want to take on any terrain, regardless of difficulty,enjoying the maximum safety and dependability of an indestructible vehicle.The cold-drawn, chrome-moly tubing has butted ends.The butted unicrown fork blades have increased thickness in the weld areas. CrMo Steel • Weight: 2495 g

CROMOR OR OVERSIZE: Chrome-moly set specially designed for the most demanding mountain-bike enthusiasts.Oversized tube diameters give the frame excellent rigidity and stability,offering both pro and amateur cyclists a good measure of safety coupledwith the characteristic lightness of Columbus butted tubing. CrMo Steel - Weight: 2580 g

Columbus frame tubes for track races:
PL for pursuit or record races tubeset weight 1845 gms
PS for sprint and 6-day races tubeset weight 2435 gms
Note: Columbus KL: 1670 (from undated catalog showing Moser in his record attempt, and has MS and SLX tubesets listed, as 'new')

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Common tube diameters:

Standard - 1" top, 1-1/8" seat and down tubes, 14mm seat stays, 22.2mm chainstays. Common tube sets include Columbus SL, SP, SLX, TSX, SPX, EL, Neuron; Reynolds 531, 753, 853; Dedacciai ZeroUno, ZeroTre; True Temper Versus, Versus HT, Platinum

Oversize - 1-1/8" top and seat tube, 1-1/4" down tube, 16mm seat stays, 24mm ovalized chain stays. Columbus ELOS, Neuron, Nemo, Foco, Brain, Thorn, Zona; Reynolds 853, 725; Dedacciai Zero, ZeroUno, ZeroTre; True Temper Platinum, Versus, Versus HT

Super Oversize - anything larger than OS. Columbus Foco, Zona, Sprit; Reynolds 853; Dedacciai Zero, EOM16.5; True Temper Platinum, S3

Wednesday, October 12, 2016

The LYNSKEY - Litespeed - LYNSKEY legacy

is a family-owned and operated company with a burning desire to
produce high-quality, custom-made, performance bicycle
frames and parts, that are functional pieces of art’.

Monday, July 18, 2016

Double Century rides of 2016

California Triple Crown
What is the California Triple Crown?
The purpose of the California Triple Crown is not only to encourage individuals to participate in these Double Centuries but, more importantly, to recognize the individuals' accomplishments. Riding a Double Century requires a lot of training and mental determination so this series of challenging events provides many positive benefits.
We have contacted various cycling publications in an effort to have them publish articles about this series. In our discussions with these publications, we have indicated our desire to have follow-up articles published which would, among other things, include a list of the individuals' names that completed the California Triple Crown series.

Schedule of DC for the Triple Crown

Monday, July 11, 2016

Death Ride 2016


This one is off the bucket list. The ride got so dangerous with those whipping winds on Ebbets Pass and Carson Pass but I was able to finish the ride safely and within the alloted time. Time to set my sight to another challenge.

8/28 updated pics

daytime pic of the trees