If you’re passing through Oklahoma and you think you can just speed through the state without any chance of getting run down from behind, think again. The Oklahoma Highway Patrol has a little surprise for you, a Suzuki Hayabusa Police Interceptor, all nice and shiny and black and radar equipped. The OHP is set to get special training at the California Superbike School. Better slow ‘er down boys.
Motorcycle design often revolves around the engine. The size, shape, number of cylinders and configuration play a large part in much of what follows. What if you had an X4? 4 cylinders in an X configuration open up new design possibilities and that is exactly what we have here, not only that, it appears to be a 500cc 2 stroke! This is the JJ2S X4 500 by JJS Design. They have developed and patented a new engine and designed a motorcycle around it.
JJS Design is a Polish company and unfortunately my translating abilities here are not so good, so I can’t fill you in on many details but the design looks extremely impressive, both the motorcycle design itself and, of course, the X4 2 stroke engine.
I will try to get a translation of some of the information, any of our Polish readers care to lend a hand?
Thanks for the tip, Brian!
Lots of images below:
Link: JJS Design
The Roehr 1250sc pre production prototype has been completed and plans are to begin production late this year. The bike is powered by a 180 hp supercharged Harley Davidson Revolution engine. This should be one extremely interesting motorcycle. I like the looks and I really like the blown Revolution engine. Final price has not been set.
Let’s see, a 180 hp supercharged American made V-Twin sportbike. Yep, I like it!
Press release:
06 May 2008, Gurnee, IL. USA. Roehr Motorcycles LLC is pleased to announce the completion of the pre-production Roehr 1250sc. The company is now working towards production commencing this Fall.
The 1250sc is powered by a specially developed 180hp, supercharged version of the Harley-Davidson* Revolution* engine, making the Roehr 1250sc the fastest and most powerful sport bike built in America.
European flair and American muscle are combined with the highest quality cycle components from world class companies such as Ohlins, Marchesini, Brembo, Akropovic and Pirelli. These components combined with the unique Roehr Bi-Metal composite beam frame contribute to the machines outstanding handling manners, offering quick precise steering response with confidence inspiring stability and rider feedback.
The Roehr 1250sc is proudly hand crafted in the USA and will be available in limited numbers. Final pricing to be announced when determined. Roehr Motorcycles is now accepting orders to reserve this exclusive machine as well as offering dealership opportunities.
More photos below:
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The following closeup is shown only to dispel the idea these photos are renderings. An engineer working on the Roehr 1250sc pointed out in a comment below this loose fastener you can only see in extreme closeups, something caught after the photo was taken.
Link: Roehr Motorcycles
Remember “The Machine” from Fusion Motorcycles? Well, Will Thibeault has been hard at work on something a lot of you may find interesting, he’s designed a conversion kit that will transform your donor Buell into a custom with killer looks.
Will’s kit uses a billet T6 aluminum bolt together frame with a built in oil tank, a 60 inch wheelbase and 33 degrees of rake. The Buell Thunderstorm motor, Buell forks, Buell six piston caliper and Buell rear caliper, all come from the donor bike.
The bike shown in these photos is for a customer with a lot of custom touches, a hard carbon fiber seat (customer request, Will prefers padded), Piaa head lights..same as he used on The Machine, Will’s own stainless pipes and Fusion Motorcycles billet 18″ wheels, 240 on the rear and 130 up front. Rear turn signals are LED.
According to Will:
The future bikes will have front and rear carbon fenders, and will be totally road legal. The Frame kits will include: frame, seat, rear shock, swing arm, oil tank, and gas tank for $4,500. For less than $10,000 a person can build their own w/ the purchase of a donor Buell. We will build the complete bike “road legal” for $19,500 and there are always the options of whatever you could think of i.e. carbon wheel, S&S motors, front ends and Ti frames
There are quite a few guys building choppers and all sorts of bikes from Buell parts and pieces but, in my opinion, this kit has just the right look. There seems to be a Confederate Hellcat influence, which is a good thing since I like the Hellcat, but overall, for the money, I don’t see how you could go wrong here. Anyone with a Buell who is thinking about getting another bike, might want to consider this kit first, you get a completely different look and you already own half of the necessary parts. I like this, a lot. I have to think a lot of guys are going to start looking for a good used Buell and making a bit of work room in their garage. Nice work, Will!
UPDATE: Will Thibeault has added a few comments below about his kit
UPDATE 2: Will just let me know that the kit will not be ready until sometime in 2009. He is redesigning some parts and he is going to thoroughly test everything before offering the kits for sale.
More photos and link below:
While most everyone else has moved on to the land of 4 strokes, there’s a group of intrepid engineers and builders in Australia devoted to the idea of building a 500cc 2 cylinder 2 stroke motorcycle, starting with the Aprilia RS250 chassis and installing their own highly engineered 2 stroke powerplant.
Grand Prix Engineer Wayne “Wobbly” Wright who has a 30 year career building GP engines and pipes went to work on the engine and the finished piece puts out 112 horsepower and 60 foot pounds of torque. Mounted in a bike weighing 286 pounds total and having the power delivery you would expect from a 2 stroke gives you a bike that one might call entertaining.
The idea here is to bring 2 stroke technology up to the best that can be built right now and place it in a modern frame and suspension package, a combination you can’t buy in your neighborhood showroom.
The company the group formed is called the Two Stroke Shop, and besides many other parts for the 2 stroke fanatic, they offer not only complete RS 500 motorcycles but also the engines alone or kits to adapt your own RS250 to accept their engine.
There are no prices on the site, expensive I’m sure, but what they offer seems somewhat unique. It’s an extremely interesting setup and just the thing to surprise the heck out of your average GSX-R pilot. I like it.
Link: The Two Stroke Shop
Every now and then, one of the many emails we receive from designers and builders stands out from the crowd, and this project, the BMW D1200R by Pablo Gonzalez de Chaves and Carlos Beltran, is one of the best to come along in quite some time.
Pablo started with the idea of improving and transforming the BMW R1200R into a new motorcycle, with a new front suspension, a new chassis, essentially a whole new design. His design work is first rate and if he stopped at that point, it would be considered well done, but he didn’t stop there, the project continued with the creation of hard parts and assembly into the actual motorcycle he envisioned on the computer screen. There’s nothing like testing your skills by making the actual pieces fit together and perform in the real world.
The year long project began with a BMW R1200R fitted with sensors and taken to the track where a great deal of performance data was gathered. Then the motorcycle was disassembled, extensive measurements were taken, entered into the computer and the redesign began.
The design started with pencil sketches, progressed to Photoshop and finally took shape in CAD and 3D modeling software. The design data was then used for the machining necessary to create the parts. Assembly surprises were limited due to the careful design work and after the motorcycle was complete, it was taken back to the track where the initial data was gathered and performance was compared with favorable results. Some areas for improvement were noted and some revisions will be incorporated as work continues.
The chassis for the D1200R is made from milled aluminum and sharp eyed readers may notice the front brake is from a Buell XB12. Lights are LEDs. The front suspension, similar to designs by Foale and Parker, was purposely left exposed for aesthetic reasons and I have to agree, it looks good that way, showing off the extensive redesign. Pablo’s website visually documents the whole process to give you an idea of the work involved.
Pablo has considerable training in the field of motorcycle design, holds a MSc in Motorsport Engineering and has work experience with Lamborghini, among others. He has 2 earlier designs on his site, one a 600cc inline 4 cylinder streetfighter and the other an electric scooter. It looks like the he’s putting his skills to good use. Excellent work!
UPDATE: Pablo wanted to add that Carlos Beltran also played a very large part in the mechanical design portion of this project and I have added his name above. Nice work, Carlos! (I should have noted his name earlier but I was relying on translations of the pages and it was a little confusing.)
Link: DeChaves Garage
Ducati V-One - Supercharged single conversion
Some guys come up with really interesting engine modifications and Bart Crauwels is one of those guys. Bart is currently working on a project that converts a Ducati 1000 DS, a 2 valve air cooled twin, into a supercharged single, using the rear cylinder as the blower. The 498cc single has 15 HP more than the original twin putting out 102 HP at the rear wheel, torque is increased and it runs fine to 10,000 rpm, 2500 rpm over stock. It’s about 30 HP more than the well known Ducati Supermono. The Ducati V-One, as he calls it, is for racetrack use only and when things get sorted out he plans to build 40 of them for customers.
In recent years there have been some custom builders, Roger Goldammer comes to mind, who have replaced the rear cylinder on a V-Twin with a supercharger. Since the cylinder is already an air pump, Bart just used what was already there. Of course, the first question before doing this is whether the blown single will have more power than the twin it’s derived from and the answer, in this case, is yes.
Another cool feature is the air tank under the seat, limited to 40 bars, which is good for a 10 second burst of compressed air when acceleration begins after which the blower’s output kicks in. On deceleration, the tank is recharged. It’s hard to see everything that Bart has done by looking at the photos, I notice an intercooler in the plumbing, too, but overall, I like this a lot.
Big thanks to Hugo for the tip!
Link: MotoRevue (in French)Link: V11LeMans.com forum with some discussion in English
More photos below:
Ducati V-One closeup
Ducati V-One schematic diagram