Frame and Bike Pricing. Frame Geometry Pro Stack and Reach. There are many good reasons to choose Calfee Bamboo for your next bicycle frame. Calfee Bamboo bicycle frames are very stiff, transferring power efficiently; are durable, resisting damage from stress and impacts; are comfortable, surpassing aluminum, steel, titanium and most carbon frames in smoothness. Read this build detail about the very special bamboo tandem, pictured above. Consider this October, 2011 review of our Bamboo Adventure in Mountain Flyer Magazine. Each of our bamboo frames requires over 40 hours of labor to build. Our frame is made from bamboo that has been treated to prevent splitting. We offer our bamboo bicycle frames in all frame styles and geometries. While they have long been popular with enthusiastic racers and endurance road riders, owing to our bamboo’s amazing strength they are increasingly seen in Cyclocross, Mountain and Touring dress. Bamboo Features: Bamboo Benefits:
AirbikeEADS, the European aerospace and defence group has announced the world's first bike to use a new manufacturing process which it claims has the potential to transform manufacturing around the globe. The 'Airbike' is made of nylon but, according to EADS, is strong enough to replace steel or aluminium and requires no conventional maintenance or assembly. It is 'grown' from powder, allowing complete sections to be built as one piece; the wheels, bearings and axle being incorporated within the 'growing' process and built at the same time. Because it can be built to rider specification, it requires no adjustment. The new manufacturing process is known as Additive Layer Manufacturing (ALM) and it allows single products to be grown from a fine powder of metal (such as titanium, stainless steel or aluminium), nylon or carbon reinforced plastics from a centre located next to Airbus' site at Filton. Andy Hawkins, lead engineer for ALM at EADS, described it as 'a game changing technology'. Comments
The Bicycle Academy : Cycle frame building school | Make a bike. Make a difference.Learn how to build a bicycle frame, keep the skills and give your first bike to someone who really needs it. We give people the lessons, skills and kit to design and make their own bikes. But there’s a big difference. Each ‘Classic Framebuilding Course’ student at The Bicycle Academy makes a bike designed especially to use in Africa. We’ve based our TBA Africa bike on the Buffalo Bike designed specifically for people in Africa. We know frame-building classes aren’t cheap and if you don’t have a workshop nearby with all the kit it’ll be hard for you to make another bike.
Home | Panda BicyclesCarbon Strand BikeThe Ordinary Carbon Bike is selected for the exhibition ‘Connecting Concepts’ And will travel around the world for the next 2 years!!! At the moment two other bikes are under development. we’ll keep you updated. This bike is made by mounting parts of a bike into a jig and running carbon wires drenched in epoxy resin between them. After a while the resin sets and the parts are united again. This all in an attempt to come up with new forms and shapes. Carbon in itself is not a very complicated material, often it is the weave that makes it high tech. Photography: Carolijn Slottje
The secret history of 19th century cyclists | EnvironmentIt is not easy explaining to family and friends why you are spending a fairly considerable amount of money and a year of your life researching the social impact of the bicycle on late19th century British society. As an uncle of mine, who is himself a keen cyclist, once helpfully asked, “Why does anyone need to know anything about that?” It can be a difficult question to answer. As with most people involved in academic research, there are many personal reasons why I’m doing it. Growing up with the Somerset Levels on my doorstep has always given me a very strong appreciation of the bicycle as a means of escape, freedom, and when my parent’s taxi service was unavailable, personal transport. Having such experiences meant that when I stumbled across cycling sources from the 1890s, it was easy for me to find them fascinating, and above all else, easy to relate to. The 100 and something years separating myself from those I was researching disappeared when reading accounts like this:
Bamboo bikes, local materials for innovative solutionsiF Mode (Pacific Cycles)The clean and striking IF MODE is aimed at commuters of the mobile generation who, until now, may have not considered cycling or folding bikes to be an option. IF MODE is a unique product that offers a new image for people who previously thought bikes were for enthusiasts only. IF MODE avoids oily chains, complex tube with hidden dirt traps and the clutter of traditional bicycle features. It can be used by city commuters who do not want to change their appearance into ‘bicycle warriors’ and may use public transport or their car for some of the journey. IF MODE looks at home folded up on a smart subway train or in an office, just like a sleek mp3 player or other well designed accessory in your life. It also performs on the street like any lightweight well balanced full size bike. IF MODE has won 2008 Eurobike Award, iF Product Design 2009 Gold Award, and Taiwan Excellence Silver Award.
The Victorian Cyclist | A history blog on the joys and perils of cycling in Victorian BritainRoad Bikes | Bamboosero"I had a beautiful 25 mile ride this morning before church services (I am a Lutheran pastor). It is smooth, comfortable and quick--average speed 17.9 mph. My average speed is up about 2 mph over the Madone. That may have to do more with excitement over the new bike, but it is definitely a smoother ride." Robert Jones "First impressions are good - stiffness will not be a problem as I actually found it very stiff compared to my current bikes. Brendan Millar Distance: 4,368.9miles (7,281.5km) Bamboo bike1 record (before accident): 2,979.3miles, 2010/9/10-10/28 Bamboo bike2 record (after accident): 1,389.6miles, 2010/11/11-12/6 Start/Goal: from Bamboosero in Santa Cruz, CA to Bamboobikestudio in Brooklyn, NYC "The bamboo bike rides really nicely-stiff like aluminum, probably due to the oversize tubes, er, sticks, but more muted like a nice steel frame. Paul Altenhofen (Calfee Bamboo Bike January 2008) Braxton Dutton
Z-TraktionAn Versuchen, den Fahrradantrieb zu verbessern, hat es zu keiner Zeit gemangelt. Seit etwa einem Jahr wird wieder ein Serienfahrrad mit Zahnradgetriebe (Kardanwelle) produziert (Feho STS 1/26, Preis über 1000 Mark) und damit an eine 1882 erstmals vorgestellte, wiederholt aufgegriffene Erfindung angeknüpft. Der Vorteil des gekapselten Antriebssystems wird freilich durch hohes Gewicht (20 kg), Hinterlastigkeit und deutlich geringeren Wirkungsgrad (durch hohe Reibungsverluste) im Vergleich zum Kettenantrieb mehr als aufgewogen. Ein besseres und das heißt: physikalisch günstigeres und technisch einfacheres Antriebssystem als Zahnrad und Rollenkette ist derzeit nicht vorstellbar. Und doch wird immer wieder versucht, selbst dieses System mit dem einfachen Zahnrad, das die Kette antreibt, umzugestalten. Versuche, den Kraftbereich der Tretkurve zu verlängern und die Totpunkte schneller zu überwinden, gehen meist von einem elliptischen Kettenrad aus. Kontakt:
Is It O.K. to Kill Cyclists?Photo SAN FRANCISCO — EVERYBODY who knows me knows that I love cycling and that I’m also completely freaked out by it. I got into the sport for middle-aged reasons: fat; creaky knees; the delusional vanity of tight shorts. Registering for a triathlon, I took my first ride in decades. Wind in my hair, smile on my face, I decided instantly that I would bike everywhere like all those beautiful hipster kids on fixies. I made it home alive and bought a stationary bike trainer and workout DVDs with the ex-pro Robbie Ventura guiding virtual rides on Wisconsin farm roads, so that I could sweat safely in my California basement. The anecdotes mounted: my wife’s childhood friend was cycling with Mom and Dad when a city truck killed her; two of my father’s law partners, maimed. You don’t have to be a lefty pinko cycling activist to find something weird about that. My own view is that everybody’s a little right and that we’re at a scary cultural crossroads on the whole car/bike thing. Take Sgt.