Showing posts with label two stroke. Show all posts
Showing posts with label two stroke. Show all posts

Monday, 11 November 2019

Julian Farnam's Dirtbag Rat - Yamaha Banshee-Powered Funny Front End Mutant

Julian Farnam Dirtbag Rat Yamaha Banshee RZ350
Image courtesy Alan Lapp

"Hey Jason, I hope all is well. I thought I'd reach out and mention that I've just completed a new project that may (or may not) be of interest..."

Julian Farnam Dirtbag Rat Yamaha Banshee RZ350 Girder Fork FFE
Image courtesy Alan Lapp

The photos that followed in Julian's email made me lean back in my chair and giggle with glee. You are goddamned right this is "OF INTEREST". You should know my taste by now Julian, because every time you send me something you nail it.

Julian Farnam Dirtbag Rat Yamaha Banshee RZ350 Front Wheel
Image courtesy Alan Lapp

If you've followed OddBike for any period of time you should be familiar with Julian Farnam and his designs. He has become a staple subject of the site for years, and for damned good reason: there are few backyard tinkerers as talented or as innovative as Julian is, and every time he puts Tig to metal he concocts something inspiring that speaks to the very heart of OddBike. Or at least something so thoroughly weird and wonderful that it will cleanse your palette of the dull Hondas and derivative Triumphs that populate your feeds for the remainder of the week.

Julian Farnam Dirtbag Rat Yamaha Banshee RZ350 Rear Wheel
Image courtesy Alan Lapp

Thursday, 22 May 2014

Imme R100 - Purity of Design

Riedel Imme R100 Motorcycle
Image Source

There are rare moments of remarkable clarity and forethought in the realm of motorcycle design, when machines are produced with such innovation and beauty that they are scarcely credible as products of their time. These motorcycles can occupy one of two positions in subsequent conception: they can be held aloft as gamechangers, as the designs that pushed the goalpost forward and forced everyone else to catch up, or they can fade into obscurity only to be appreciated by a limited few who recognize how advanced they truly were. Many remarkable designs fall into the latter category, the genius of their creators only recognized long after they pass into anonymity once the rest of the industry has caught up to the future that was laid out well in advance. Appreciation of these machines is only possible in hindsight when we see how their details foreshadowed subsequent trends.

German motorcycle designer Norbert Riedel was one such forgotten innovator, and his Imme R100 proved to be a masterpiece of design that has only began to earn true appreciation in recent decades. Once a cheap and cheerful form of transportation that was designed and built within the restrictions of a postwar economy, the Imme became one of the most fascinating examples of motorcycle design to emerge during the mid-20th century – and would prove to be one of the most beautiful motorcycles of any era. They were a machine out of time, a vehicle that applied nascent principles that were still decades away from the mainstream, and a series of ingenious design elements unified into a coherent whole that has since earned the accolades of some of the world’s motorcycle elite. The Imme was not just a cleverly constructed motorcycle, it was one of the most beautiful pieces of modern industrial design that nobody has ever heard of.

Monday, 10 February 2014

DKW Supercharged Two-Strokes - Force-Fed Deeks

DKW supercharged SS 250 Ladepumpe motorcycle Barber Museum
DKW SS 250 at the Barber Museum

There is a saying that used to be shared in history circles, with a wry smirk, which has since become a minor cliche: “History is written by the winners”. Hackneyed though it may be, there is a great deal of truth in that old platitude. Be it in politics or in motorsports, odds are the story you know is the one that has been informed by the success of those who came out ahead. In the case of DKW and their series of once-dominant supercharged motorcycles, the company's successes have been drowned out by the tides of history. Some of the fastest, most advanced, and technologically interesting two-strokes of the 1930s have nearly been forgotten due to the company's unfortunate national ties – the once-famous Ladepumpe and supercharged “Deeks” became victims of historical circumstances beyond their control.

Friday, 28 June 2013

Gilera CX125 - Beginning the Future


Gilera CX125 Motorcycle
Image Source

Up until recently there was an interesting category of sporting 125cc two-strokes that dominated the European beginner bike market. Countries like Italy and Britain restricted new teenaged riders to 125cc machines as a “learner” category that was well catered to by most of the major manufacturers. These learner specials often had race-replica sport-bike styling and sharp dynamics to appeal to the masses of hormone-addled 17 year olds who wanted to look fast, even if their machine couldn’t have more than 15bhp by law. Four-stroke 125s were always available but the hot ticket up until recent years was always a rip snorting two-stroke that could be derestricted once you had completed your learning period. While the four-strokes and two-strokes made the same power when restricted, the smoker could be uncorked afterwards to unleash the full fury of the mighty single – as much as 35-odd horsepower, manic power in a machine that scarcely cracks 250lbs with a full tank of fuel.


Gilera CX125 Motorcycle
Image Source

Most of these learner specials are by and large inspired by their bigger stablemates – thus you could get a miniaturized Yamaha YZF-R, Honda NSR/CBR, Aprilia RS, or even an 8/10ths replica of the iconic Ducati 916 sold as the Cagiva Mito. There was, however, one notable exception to this rule where a manufacturer went all in and gambled on producing a totally unique design that would break the mould. Gilera produced what was possibly the weirdest 125 sport bike of all time – the short lived and radically-styled Gilera CX125, which would quickly earn a status as a cult special that had some of the most futuristic design to ever grace a “beginner” bike.

Gilera is one of those unfortunate cases of a once-great marque that has recently fallen into obscurity and the realm of the mundane. Gilera was once a mighty force in motorcycle competition, producing some of the most advanced Grand Prix machines of the 1930s, 40s and 50s. Gilera today is a mere footnote in the history of Italian motorcycle brands and a feather in the cap of parent company Piaggio, who debased the once-storied name it by slapping its logo onto a series of dull scooters. It wasn’t always so.

Monday, 3 June 2013

Silk 700 - The Ultimate English Two-Stroke


Silk 700S Sabre Motorcycle
Image Source
Think of the icons of British motorcycling and odds are you will think of one thing exclusively – four-strokes. All the great flagship cycles of English industry – the Commandos, the Manxes, Bonnevilles, Tigers, Interceptors, Gold Stars, and anything else of note from the golden age of British bikes was going to be operating on the principles of suck-squish-bang-blow. British two-strokes were relegated to small, cheap, entry-level machines that were aspired to by no one. Dirty two-strokes were the domain of the Japanese as far as most of the British marques were concerned.

Monday, 20 May 2013

Julian Farnam's CHOPPRD - The leading-link Dirtbag RD400

Farnam RD400 Yamaha CHOPPRD Motorcycle
Image Courtesy Alan Lapp

In a modest garage a few miles east of San Francisco, there is a man who builds motorcycles. This might not sound particularly exceptional, as there are men building bikes in many garages in many cities, and some of them are exceptional enough to get profiled on sites like this. Julian Farnam is a different sort of builder though, and he has built a different sort of bike. He is a consummate tinkerer, a man who puts together unique machines of his own design in his spare time. It's not his day job, but he is damn good at what he does – producing some of the most interesting and thoughtfully designed custom bikes you'll come across anywhere. The bike we are featuring today is one of Julian's odd creations, a raked and chopped Yamaha RD400 that applies one of Julian's favourite concepts – alternative front suspensions. More remarkable is that the CHOPPRD, as Julian has christened it, was built in his spare time over a 30 day period for a total budget that could not exceed $1000 – that includes the donor bike and all the parts and modifications that go with it.

Read the rest about Julian Farnam's CHOPPRD RD400 on Pipeburn


Wednesday, 10 April 2013

König 500 GP - Outboard-Powered Underdog


Kim Newcombe Konig Motorcycle
Kim Newcombe and his Konig Grand Prix bike
Image Source
Once in a generation there emerges a racing prodigy who defies belief and achieves success far beyond the odds. These men and women display innate and remarkable talent that is often so extraordinary that they become legends in their own time. They are the mythical “naturals”, those who perform complex tasks extraordinarily well despite their lack of experience. New Zealand motorcycle racer Kim Newcombe was one such prodigy, and one of the most tantalizing “what ifs” of motorcycle racing. He entered competition as a novice and immediately began to beat seasoned veterans. Not only that, but he single-handedly crafted and maintained his own machine – which he then campaigned successfully at the top level of the sport against the greatest riders of the 1970s. The tale of Kim and his Konig 500 GP motorbike is a true motorsports Cinderella story, and one of the most fascinating and tragic tales from the golden era of motorcycle road racing.

Monday, 11 March 2013

Yamaha A-N-D FFE 350 - Forkless Two-Smoker

Julian Farnam FFE 350 Forkless Yamaha RZ Motorcycle
Image Source
As far as motorcycle design goes, manufacturers tend to err on the side of conservative engineering. Stick with what is known, what is common, what is produced in great quantity and with known characteristics. This is especially true in suspension design. With the current proliferation of so-called “conventional” telescopic forks, it’s quite easy to forget that there are hundreds of alternative front suspension designs, many of which address the key weaknesses of traditional forks with distinct performance advantages.

Monday, 17 December 2012

V-Roehr 1130/1250 - The Other, Other American V-Twin Motorcycle



It has an American-made V-Twin (an honest-to-god Harley motor, no less), an advanced chassis, top shelf components, and a distinctly sporty bent, with stunning performance that is far greater than the sum of its parts. It’s built by a clever American engineer working independently to apply his own ideas towards building the ultimate American made sport bike, powered by an apple-pie and Budweiser fuelled motor.

And it isn’t a Buell.

Sunday, 11 November 2012

Bimota V-Due 500 - The Bike That Killed Bimota



In 1996-97, Bimota was set to introduce a new machine that would revolutionize sport bikes. It would be an unstoppable, razor sharp 500cc two-stroke that would give 1000cc four strokes a run for their money, in a time when it appeared that two-strokes were on their way to the boneyard. There was a lot of excitement brewing around the forthcoming V-Due (literally, V-twin) - not only because of the mouth-watering specs and the fact it was being built by one of motorcycling's most legendary boutique marques, but also because it promised to fix the "problem" that two stroke road bikes were facing.