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Track Prepped: A CB750 from one of Spain’s top race teams

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
Many of the world’s top racing drivers love two wheels just as much as four. We all know Lewis Hamilton rides an MV Agusta, but Vettel, Raikkonen and Webber are bike nuts too. Michael Schumacher briefly raced Fireblades, and Alonso has lapped Motegi on a Honda MotoGP bike.

The Spanish team Campos Racing has taken this cross-pollination a whole step further. Sporting director Adrián Campos is a keen bike builder, and has just finished this beast of a CB750F.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
The Honda is the 18th build from Bolt Motor Company, which shares workshop space with the race team. But it’s a little more significant than its predecessors: it’s designed to celebrate young driver Leonardo Pulcini’s championship-winning seasons in EuroFormula and the Spanish F3 series.

“The goal was to create a mix between a cafe racer and a racing motorcycle, while looking as close as possible to the car Leonardo raced with,” Adrián explains.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
The base is a 1984 CB750F Super Sport, which means it’s a DOHC air-cooled four. With 77 hp on tap and four 32mm Keihin carbs, the Honda was lauded for its throttle response and acceleration—and was reportedly quicker around a track than a Ducati 900 Desmo SS.

This particular CB750 also had just 650 kilometers (400 miles) on the clock when it rolled into the Valencia workshop. “It was brand new!” says Adrián. So he’s left the engine internals alone, and just freed up the gas flow with a stunningly curvaceous exhaust system.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
This was built by TUN, a little-known but well regarded Valencia specialist that creates systems for racebikes. With a huge bore and a flush-fitting muffler tucked under the seat, it looks the business.

Further down is the aluminum single-sided swing arm from a Ducati 1098, adapted to fit the CB750F’s frame. Adrián admits that it was a tricky part of the build, but then again, we’re sure he’s faced worse challenges in the workshop.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
The 17-inch wheels are from a 1098 too (shod with Michelin Moto2 slicks), along with the fully adjustable Showa 43mm USD forks.

The 1098 also gave up its triple trees and clip-ons, and the front fender is a carbon Ducati Performance part. The Brembo Monoblock brake system should make the bike even quicker around a track.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
The bodywork—or rather, the imposing tank and vestigial tail unit—sits on a modified frame with dead straight rails.

The tank is a modified unit from a Laverda Mirage 1200: a bike we haven’t come across before, and a more civilized version of the legendary Jota.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
As a racing team, Campos have the full range of low-run manufacturing facilities at their disposal. So Adrián designed the tail unit in CAD, and got it 3D printed. The indicators are tucked inside the frame tubes, and only visible when activated.

There’s a neat little custom belly pan too, adding a measure of protection to the exhaust headers without dominating the look of the bike.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
As you’d expect from a race team, the controls and instrumentation are top shelf. The grips, indicators, switches and speedo come from Motogadget, and the levers are Brembo.

So what does 19-year-old Leonardo Pulcini think of the Honda? “At the moment he is still my driver, so I don’t allow him to ride bikes!” says Adrián.

Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams
Until Leonardo retires, his father will be piloting the machine around the streets of his hometown Rome. And we suspect that Pulcini Sr. will be quite happy with that arrangement.

Wouldn’t you be?

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Track Prepped: A Honda CB750F from one of Spain’s top auto racing teams

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Custom Bikes Of The Week: 3 June, 2018

The best cafe racers, scramblers and bobbers of the week
British motocross champion Billy MacKenzie builds an incredible CBX750. Royal Enfield reveals a +100 hp Continental GT dragster. And Rua Machines turn the Moto Guzzi Nevada into a thing of beauty. It’s been a week of surprises.

Royal Enfield LockStock drag bike
Royal Enfield LockStock We were all pretty excited when Royal Enfield pulled the wraps off their new line of parallel twin motorcycles. Not only did it mean there’d be another couple of classically styled bikes on our roads, but also two new bases from which builders could choose.

This custom is LockStock, a bottle-fed dragster based on the Continental GT. Outside of the new engine and some bits of the Conti’s cradle frame, little remains of the stock bike. The subframe has been re-engineered in-house for quarter-mile attack, and the lengthened swingarm no longer swings—it just keeps the bike planted.

Royal Enfield LockStock drag bike
A steering damper has been installed to reduce straightline chatter at speed and the ergonomics dictated by those U-shaped bars should keep the rider from attempting any drastic changes in direction.

In stock form, the 648cc twin musters up 47 hp of puff, but LockStock can take a hit from a little blue bottle for extra oomph. S&S Cycle helped bump power to over 100 hp with bored-out barrels, a competition camshaft and high-comp pistons, taking capacity to 865 cc. Make this available as a kit please, Enfield. [More]

Custom Honda CBX750 by X-Axis
Honda CBX750 by X-Axis We should have known when we sussed out X-Axis’ CX500 that the New South Wales shop has a knack for transforming quirky Hondas into rolling works of art. This time around, a 1984 CBX750 found its way onto their bench—and the results hit that mix of neo and retro in all the right places.

I’m probably showing my age, but a set of twin rectangular sealed beams will pique my interest every time. And despite my hatred of the 80s when I lived through them, the nostalgia is all so very real nowadays. According to shop leader (and former British MX-1 champ) Billy Mackenzie, the styling was influenced by the iconic Ferrari GTO of that era, hence the swooping lines on the tank, the Rosso Corsa colorway, and the aforementioned front end.

Custom Honda CBX750 by X-Axis
Nothing came easy on this build. To create a retro ride that would outperform today’s showroom sitters, Mackenzie and his crew fabricated quite a few special bits. To fit the new CBR600 front end, the CBX’s original wheel needed some serious work to mount up with the twin discs. And a new stem needed machining to have everything come together.

There are plenty more details that are worth your time and effort, so it’s a good idea to click on over to Return of the Cafe Racers for the full report.

Custom BMW K100 by Les Ateliers du Dr Joë
BMW K100 by Les Ateliers du Dr Joë When Pyrenees-based tattoo artist Joël Alba found himself looking for a new mechanical project, his mind wandered to the BMW K-series. More specifically, Dr. Joë wanted to turn a flying brick into something that would resemble a race-bred, factory machine.

The K100 he sourced was promptly disassembled, and the transverse mounted engine was treated to a full teardown and rebuild. While the internals were being buttoned up, the Beemer’s frame had all of the tabs ground down, smoothed out and the whole kit was given a fresh coat of black lacquer.

Custom BMW K100 by Les Ateliers du Dr Joë
But it’s the bodywork that steals the show here. Dr. Joë fabricated the new front fairing, windshield, tank, tank housing, seat and cowl in house. And, in our eyes, he’s done some splendid work. The way that front fairing finishes where the roundel would normally appear on the tank makes me smile. The fact that those roundels were swiped from a BMW Z4 and function as side markers is a crowning stroke.

It shows some serious dedication to getting proportions just right, adding depth to the visuals and a flair for the original. Which shouldn’t surprise, since Dr. Joë is also pretty handy with the hot needle too. [More]

Yamaha Virago tracker by Jody Milhouse
Yamaha Virago by Jody Milhouse Whenever we run across a custom Virago, Greg Hageman’s name is typically on the build sheet. But the Yamaha V-Twin machine is starting to find favor amongst others as well. This one comes from 22-year old Jody Milhouse of Thornton Hundred Motorcycles, who some of you may remember from the CR500 we featured last year. And he’s done another cracking job.

If you were at this year’s Bike Shed show, you undoubtedly drooled over the Speed block liveried, monocoque tank and tail that Jody created for this tracker build. The lines are spot on and give this ‘83 Virago a muscular appearance it never had in stock form. More impressively, the sheet metal work is Jody’s first attempt to shape the stuff on a professional build.

Yamaha Virago tracker by Jody Milhouse
Of course there’s more than just fancy bodywork going on here. The frame has been treated to a full bout of detabbing and a new subframe was put together too. The front end from a Monster 821 was fitted up front, and a conversion was made to a Magura hydraulic clutch. The 750 V-twin now inhales through a single Mikuni TM40 carb and exhales via a trick, custom exhaust setup that Jody capped with a handmade silencer. [More]

Moto Guzzi Nevada cafe racer by Rua Machines
Moto Guzzi Nevada by Rua Machines When it was introduced, the Nevada 750 was applauded for its light, agile and quick handling. However, the cruiser stance didn’t advertise that fact—and it wasn’t exactly what we’d call a looker, either. On the other hand, this honey of a cafe’d version by Portugal’s Rua Machines looks ready to connect the dirty dozen apexes at Estoril and drop jaws along the pit lane.

Much of Mandello del Lario’s original handiwork has been cast aside. The bodywork is long gone, and the frame has been tweaked to give a flattened, racer stance. Armando Fontes and Victor Rocha looked to Guzzi’s Le Mans for inspiration and did an absolute stellar job on the new subframe, seat and tail section.

Moto Guzzi Nevada cafe racer by Rua Machines
The tank is actually from Bologna, once laying atop a Ducati 350 GT, and the roots of the Verde Boreale paint can be traced back to Milan and Alfa Romeo. Set against the deep mahogany of the seat and grips, it’s a knockout combination.

Longer travel Bitubo shocks were hitched up to the rear, and the front forks have been rebuilt and renewed for a more sporting ride. This is helped with the more aggressive ergos delivered by the clip-ons and rearsets. Performance has been addressed by that gorgeous under-mount exhaust and a free breathing K&N air filter. [More]

Moto Guzzi Nevada cafe racer by Rua Machines

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Mixology: A Honda cafe with two engines blended into one

A Honda cafe racer with the best of two engines blended into one
‘Perfectly insane about motorcycles’ is how friends and colleagues describe Nazar ‘Gazzz’ Poznyakovsky of Gazzz Garage in Kiev, Ukraine.

“I combine engineering and artistry,” says Nazar. “I work out everything from general plans to the smallest details from both engineering and artistic points of view.”

A Honda cafe racer with the best of two engines blended into one
With that much control over every step of the process, Nazar has a reputation as a detail-obsessed майстер на всі руки (Jack-of-all-trades). And he’ll stop at nothing to execute his vision for a project.

Case in point is his latest achievement, a beautifully remixed CB750 with class, artistry, detail, and power.

A Honda cafe racer with the best of two engines blended into one
“I wanted to make a cafe racer with a soul-stirring sound and head-turning looks,” Nazar says of his ‘CB815.’ That’s a tall order for a rather common platform, but Gazzz was up to the challenge. “In the tradition of Gazzz Garage, not much remained of the original bike.”

The front forks, the lower triple tree, the front of the frame and some engine parts are all that stayed from the donor.

A Honda cafe racer with the best of two engines blended into one
The engine is a masterful hybrid of the classic CB750 mill and its more powerful but problematic ancestor, the CBX750. “The CBX creates an additional 20hp and 9Nm at the crankshaft, but the oil system frequently caused rods to be thrown through the case,” says Nazar.

“This and other issues were completely solved in the CB750 engine, so I decided to take best of both engines”.

A Honda cafe racer with the best of two engines blended into one
By combining the two, Nazar wrought a new heart with a six-speed gearbox, a hydraulic drive clutch, a better crankshaft, case, and oil system, and a cylinder head with larger valves and performance cams.

But he didn’t stop there.

A Honda cafe racer with the best of two engines blended into one
“Big bore piston kits for the CBX750 do not exist, so I worked out my own solution,” he says. After some fettling, the cylinder barrels were bored 3mm over original and Nazar replaced the piston rods to hold compression as high as original. “I suppose I was first who performed it, and in this way I got an 815ccm engine with the best features of the CB and CBX engines!”

To finish off the performance mods, Nazar ported and polished the heads, and made a stainless steel intake system. Re-jetted carbs breathe through Kijima pod filters, and a 4-into-4 exhaust provides the “soul-catching” growl and bark.

A Honda cafe racer with the best of two engines blended into one
With the power plant settled, Nazar developed artfully engineered details that set this CB750 apart from its counterparts. “More power, less weight, perfectly working suspension and brakes, eye catching appearance: those were my goals.”

At the top, Nazar replaced the CB750 tank with one from its odd-duck cousin, the CX500. After treating the tank to custom paint, Nazar fitted a new cap with a modified lock and a Moto Guzzi fuel petcock.

A Honda cafe racer with the best of two engines blended into one
Moving forward, Nazar sourced an upper triple clamp from a 750 Nighthawk that was more suitable for clip-ons—while retaining the original 41mm fork tubes with preload adjusters.

“The Nighthawk has a two-holed mount for the handlebars, so I decided that I should use them. I machined them a bit and used the right hole to install a T&T analog clock and the left hole for a side stand indicator.”

A Honda cafe racer with the best of two engines blended into one
Completing the cockpit is a T&T ‘all-in-one’ dashboard and a T&T oil temperature gauge, sitting behind an 8-inch British style headlamp flanked by custom made LED turn signals.

Attached to the front forks is a custom front hub. It’s mated to a Warp9 17 x 2.5 rim with custom made spokes, with a Dunlop K375 tire sweetly hugged by a custom made steel mudguard.

A Honda cafe racer with the best of two engines blended into one
Front braking is provided by twin 300mm discs with Nissin dual piston calipers attached to a Kawasaki Vulcan 1500 master cylinder, by way of Hel braided brake lines.

The rider now sits on a custom seat (and aluminum pan) fabricated by Nazar. Underneath is an aluminum swingarm from a Kawasaki Zephyr 750, and between the rails is a Honda Translap 650 rear hub.

A Honda cafe racer with the best of two engines blended into one
This time, the Warp9 wheel is 17 x 4.25 and shod with a chunky 160/70-17 Bridgestone G528 tire. Keeping everything in place are Kayaba fully adjustable rear shocks with custom made adjusters.

This CB750 is a good 20 kilos lighter than the source bike, and details are plentiful—right down to the custom footpegs and chain guard.

A Honda cafe racer with the best of two engines blended into one
As a one-man shop, Nazar is undaunted by the unknown. And he’s brought to life a beautiful vision, despite living in a part of the world where parts availability is, at best, challenging.

Astounding work from the madman in Kiev.

Gazzz Garage | Images by Nazar Poznyakovsky

A Honda cafe racer with the best of two engines blended into one