This is a week of intense boxers, with two BMWs from Europe and one Ural flat tracker from Siberia. But first, look at the crazy new Crighton CR700W, which has a rotary engine with an output of more than 200 horsepower, and the Honda Hornet cafe racer from Brazil.
Crighton CR700W In the UK, Crighton Motorcycles and Rotron Power just unveiled the new Crighton CR700W, and we were ecstatic. Not because of its perfect lines, aluminum chassis from Spondon, or huge carbon fiber real estate. No-this is because its motor fascinates us.
This is a 690 cc, fuel-injected rotary engine that can output an incredible 220 horsepower. In terms of its capacity, this makes it one of the most powerful naturally aspirated engines ever, with a horsepower per liter higher than that of a MotoGP race car. It has a dry weight of 129.5 kg [285 lb] and a power-to-weight ratio of 1.68 horsepower/kg.
As reported by Asphalt & Rubber, CR700W has been produced for a long time, and its roots can be traced back to Norton’s game plan. A&R calculated the numbers and described CR700W as "Moto3 weight with SBK power data".
Understandably, this bicycle is quite expensive and very limited. Only 25 will be produced, each of which will be handmade by Brian Crighton at the company's factory in the UK. It takes £85,000 plus tax [approximately US$115,000] to show your name in the order book.
However, you get a lot of money. The CR700W motor is manufactured in-house and paired with a custom "box" from Nova Transmissions and an innovative cooling system designed specifically for bicycles. The specification also includes Dymag wheels, Öhlins or Bitubo suspension, and Brembo brakes. [Clayton Motorcycle]
Honda CB600F Hornet by Retrorides by Lourenço The Honda Hornet is not a common benefactor of custom projects, but done right, it has huge potential. Lourenço’s sharp Hornet-based cafe race car from Brazil’s Retrorides provides a strong reason for the 97-horsepower four-cylinder Honda.
Retrorides is a family business run by Jose Lourenço and his sons Gustavo and Rodrigo. Because of his love and understanding of Honda motorcycles, Rodrigo put forward his opinions on this project. His idea was to create a cafe racing car with modern performance, but its design was inspired by Honda in the 70s.
"The first thing that bothered Rodrigo was the rear swing arm," Gustavo said, "because the square design shows that the bike is from the 2000s. We made a fixture to create a new fixture with the same geometry as the original, but with a new design. "
The new lattice layout looks very important, complemented by the front fork of the Kawasaki Ninja ZX-6R. As the family's internal mechanic, Gustavo CNC machined a new set of aluminum triads with the classic Honda "600 Four" pattern engraved on the top yoke. Then he made a pair of aluminum wheels to fasten a new set of hoops.
After these people tried and abandoned the idea of using Honda CB750 fuel tanks on bicycles, Jose was responsible for designing a custom fuel tank. But when he was hospitalized with a heart problem, the project stopped - and was told by his doctor to put down the tools.
"We left the tank on the bench and waited for him to return to the workshop," Gustavo said. "Every time we see this tank on the bench, we miss him very much. We worry about his health because we don't know what will happen to him."
After 60 days, Jose fully recovered and resumed work, completing the fuel tank with a CB750 air cap, adding a touch of elegance. These guys also built a new subframe, added a separate seat and a small rear collision.
The rest of the parts list includes the Acewell speedo, clips with new handles and rod end mirrors, Koso headlights and custom foot controllers. There is also a four-in-one exhaust system, which improves the soundtrack and helps the Hornet reduce more weight.
There are many more subtle details-such as the blackened radiator reservoir, and the color coding on the speed stack and rear shock springs. This bumblebee has a delightful apple candy red finish and vintage Honda motif, which is perfectly between modern and classic. [Lourenço Retrorides]
BMW R80R by Renard Speed Shop In 1997, long after its debut, BMW released the last version of the R80GS. Known as the "basic model" and finished with a simple white painting, this is the last chance for fans to have a legendary machine. Now, the Estonian store Renard pays tribute to "Basic" and we are in love with it.
Renard started with the BMW R80R in the early 90s, and then replaced the fuel tank with the R80ST device, which is almost the same as the old GS fuel tank. They also modified the subframe to accommodate the ST seat plate, and then finished it by shaping their own seats with Alcantara interiors.
From a distance, the white paint and well-cycled tank graphics make this bike the death of R80GS Basic. But Leonard also dealt with some of their own ingenious details. BMW's rear fender is more stylish than the GS at the time, with smaller tail lights and thinner turn signals at both ends.
The side cover is actually a modified Moto Guzzi part, and the exhaust is a modified BMW F800 part. The cockpit has a new handlebar riser and Fuxxtech dashboard, which combines an inventory clock and a row of LED warning lights.
Observe carefully, you will also find a slight flash in the copy blue paint job on the frame.
The reissue of Basic required 21-inch front wheels, but Renard couldn't find a replacement that could be used with OEM brakes, so their version rolled on the donor's original 18F/17R hoops. The suspension is also in stock, but the motor is not; it comes with a 1,000 cc kit from Siebenrock.
Just like the classic BMW modified car, this car is hard to beat. As fashionable daily runners, we are happy to park it in the Bike EXIF garage. [Reynard Speed Shop]
BMW R100RS by Cafe Racer Dreams Yes, Cafe Racer Dreams still exists (despite new ownership) and still produces BMW Boxers at assembly line speed. They have now reached the 124th build, which is a refreshing change from the float style that Madrid shops are famous for.
This BMW R100RS follows the traditional cafe racing rules, but is higher than most people. The smooth black finish, blue frame and fresh paint on the motor first attract your attention-but the specifications of the BMW parts are also very respected.
In the front is the front end of the Suzuki GSX-R1000, equipped with Showa forks and dual Tokico disc brakes. A set of Öhlins rear shocks are connected to the new subframe. It even has reasonable Dunlop Arrowmax tires.
At the top is a new half fairing, mounted on a customized bracket system. Behind it is a set of adjustable Tomaselli clips, flanked by a CNC machined top yoke, with an integrated Motogadget dashboard. The handle is Vans' "waffle" product, and a set of Highsider mirrors hide cleverly integrated LED turn signals.
CRD also installed Tarozzi feet, custom fenders and a pair of low-hanging GPR exhaust mufflers. Tidy work for Spanish veterans. [Cafe Racing Dream]
Ural IMZ M-72 by Hammerbike Customs Retro Ural customs are rare, but do you know what is rarer? An old-fashioned Ural plane tracker, that's it.
This cute weird is based on the Ural IMZ M-72 from 1954, which is the work of Roman Molchanov of the Hammerbike Customs in Novosibirsk, Siberia. Roman has used the M-72 before, which is basically an imitation of the BMW R71 in the late 1930s. But this time, he wanted to use it to build a flat tracker.
"I like flat head trackers, and I also like flat head engines," he told us. "So I decided to put them together."
The polished appearance of the Ural engine suggests an overhaul, but we were surprised by the extent of the work. Roman modified it with forged pistons and improved cylinder heads, which increased the compression ratio and reduced the weight of the flywheel. It is also equipped with a racing cam and a new ignition device-according to Roman, all these modifications imitate the Ural race cars made in the 1950s.
Roman's Ural also used a series of surprising scalping parts, including Buell forks and Honda Comstar wheels. Despite its age, it is still equipped with a full set of stainless steel fasteners. Hand-made decorations include high-riding exhaust devices and air filters.
Completed with a new seat, track bar and Harley-style orange paint job, the Ural Flat Tracker in Rome is surprisingly fascinating. He claims that this is the world's first M72 flat tracker, and he may be right-that's why this bike wears the #1 plate so cheeky.
[Hammerbike Customs | Picture of Alexander Kozlov]
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