IGNITION CONCEPT

TECH SHEET

European drag racer and custom bike builder Urs Erbacher took on the challenge of wrapping this motor in a package capable of putting the world-class power to the ground. The concept features and aggressive stand and frames the engine with a castaluminum chassis, performance suspension and brakes with an aggressive Project 156 inspired paint scheme.

· Urs Erbacher – FAT ATTACK




MODEL-BASIC:				Harley-Davidson Knucklehead
FRAME:				Harley Davidson
RAKE:				28°
ENGINE:				V-Twin engine / Knucklehead
CUBIC INCH:				1584 ccm \| Big Bore
EXHAUST SYSTEM:				Fat Attack handmade headers with an Akrapovic® muffler
TANK:				Fat Attack Alu
TAIL:				Fat Attack Alu

FRONT TIRE:				Metzeler Racetec Interact, 120/70 ZR17
FRONT WHEEL:				Alloy, 3.5 x 17”
REAR TIRE:				Metzeler Racetec Interact, 200/55 ZR 17
REAR WHEEL:				Alloy, 6.00 x 17”

FRONT SUSPENSION:				Travel 120mm
FRONT FORK:				Custom Built Fork Tube Diameter 50mm
REAR SUSPENSION:				Travel 76mm
FRONT BRAKES:				Dual discs, Brembo® M4 Monobloc
REAR BRAKES:				Single disc OEM

HEADLIGHT:				Fat Attack
TAIL/BRAKE LIGHT:				Fat Attack
TURN SIGNALS:				Fat Attack
LICENSE PLATE LIGHT:				Fat Attack
SPEEDOMETER & INDICATOR LIGHTS:				Motogadget

IGNITION CONCEPT HIGHLIGHTS

Swiss bike builder and drag racer, Urs Erbacher Custom Bikes – Fat Attack, creates a concept motorcycle with victory motorcycles’ newest v-twin engine.

FRAME

Erbacher examined Victory Motorcycles’ existing cruiser line-up and created a concept that would put the new V-Twin engine at the heart of the bike.

ENGINE

This has the same base architecture in the prototype engine used in Project 156 – the crankcase, v-angle, rotating bottom-end, transmission and clutch set-up is all the same. The liquid-cooled four-valve engine has double overhead cams with the aim of making class-leading power. Additional details of the engine will be revealed in the months to come.

EXHAUST

Erbacher and his team have handmade twin headers that snake out from the cylinders into a single pipe and then in to an Akrapovicˇ® muffler. The idea is to create the shortest exhaust for maximum performance.

SUSPENSION

The front and rear suspension are adjustable. Marzocchi forks stand proud at the front and Erbacher explains why: “We have used the same forks on our ‘Erbacher The One’ custom bike for the past three years. The forks are really nice to ride with and they absorb a lot on bad streets. The good thing is, we can also mount the Brembo® brake on this fork and it brakes like a race bike.” Erbacher and his team fitted an ÖHLINS® shock at the rear between the frame and the swingarm.

WHEELS

Erbacher chose 17” wheels made from aluminum. “These are superlight and are the right size for the Metzeler Racetec Interact tires we are using,” says Erbacher. “They give the bike a great look. We chose the red color as a nod to the Project 156 bike.”

FUELLING A PASSION

Urs has grown his bike-building business, Fat Attack Custom Bikes AG, into a renowned name on the biker scene. With gasoline and nitro in his blood, he leads teams that create unique motorcycle rebuilds in Switzerland for customers all over Europe. In the past Urs has sometimes had to push his team hard, working up to 20 hours straight to get a build finished. Leadership and motivating others are his strengths.

In 2014, live at the Swiss-MOTO show, Urs and his team toredown, customized and re-built a Victory Motorcycles’ Hammer® S in just four days – resulting in a show-stopping drag-inspired cruiser with Erbacher’s signature styling – that bike was called the ‘Erbacher Hammer Sport’.

In 2015, Victory Motorcycles® shipped one of its pre-production V-Twin engines to Erbacher’s incredibly well-equipped workshop along with a very simple brief; create a machine with the V-Twin at the heart of the bike. Erbacher was quick to recognize the potential for building a motorcycle more in tune with Victory Motorcycles’ existing line-up of cruisers, as well as paying homage to Project 156 – the bike that was the test bed for the new engine. The brand is thrilled with the end result and Victory Motorcycles® General Manager Rod Krois says: “Project 156 was a purpose built racer that took our engine design to one of the most challenging races on the planet – it was a proving ground like no other that set the bar very high for our team. We will continue to take this engine platform and deliver on the promise of American muscle in every current and future product we sell.”

Steve Menneto, President of the Polaris Motorcycles Division is proud of the brand’s direction and said: “Victory Motorcycles® – from day one – has been a brand that delivers outstanding in-class-performance, reliability and handling. Our new engine along with Urs’ Victory® Ignition Concept and future concepts to debut in New York City will plot the direction not only of a fantastic new platform, but of this brand. We will continue to design and build the best cruisers in the class.”

CLEAN, POWERFUL AND DYNAMIC

“I’m proud not only of this build, but what it represents for the future of the Victory Motorcycles® brand,” says Urs Erbacher who has given the bike a Project 156-inspired paint scheme.

“Having an open invitation to wrap the new engine in an interesting bike is a real highlight in my career – and I imagine that any production bike with this powertrain will be a fantastic ride.”

– Climb on and get on the gas –

IGNITION CONCEPT - VICTORY MOTORCYCLE