Motorcycle News - Corsa Americano: The Lloyd Brothers’ Ducati Flat Tracker
Enter Lloyd Brothers Motorsports, who have a thing for fielding Ducati-powered flat trackers. Back in 2010, they were the first team to break Harley-Davidson’s 19-year winning streak…with an air-cooled, two-valve desmo motor powering their race bike.
The bike you’re looking at is Lloyd Brothers’ brand new racer. With changes in the AFT Twins class rules ahead of this season—including a size limit of 850 cc—the team was forced to ditch their previous platform and start over.
Then the rules changed in the off-season, and the guys had to adapt—so they switched to the 821 cc mill in the Ducati Hypermotard 821.
Regulations don’t allow for ride-by-wire throttles, and specify that the intake needs a 44 mm choke point somewhere within the throttle body itself. So this Ducati’s running modified 748 throttle bodies to keep things legal.
The radiator presented another challenge. With the wide cylinder spread of the L-twin engine, and the beefy 19” flat track wheels, placing the radiator behind the front wheel was simply not possible.
On the electrical side, the crew had to ‘trick’ a Microtec ECU into thinking that the 821 was a compatible bike (it’s not). So they started with an 848 wiring harness, removed all non-essentials and shortened it to fit.
Everything is packaged into a fully bespoke chromoly steel frame, complete with a mono-shock rear end. Fabrication gurus Fuller Moto built the frame for the Testastretta powerplant, to Lloyd Brothers’ spec. It’s essentially an evolution of the frame design that they’ve been running over the past few years.
The master cylinder and caliper are from Brembo, but the caliper has been modified by TAW Performance to accept a vaned rotor. “Lloyd Brothers Motorsports was the first team to introduce vaned rotors to modern flat track racing,” David Lloyd tells us.
Quintessential flat track bodywork finishes the bike off, with a fiberglass tank and tail from First Klass Glass in Michigan. The seat pad’s from Saddlemen, and the livery is as Italian as it gets, with a matching set of ODI grips. And there’s a smattering of carbon fiber protective bits for a little extra insurance.
He’s now set to return on Labor Day weekend in October, at the Springfield Mile. And David Lloyd is pretty optimistic: “We are very happy with the chassis. It was well sorted over many years and developed around the higher torque, larger displacement air-cooled engines.”
If you’re reading this from the UK, head over to the Goodwood Festival of Speed immediately—because that’s where Lloyd Brothers are currently showing this Ducati off. Otherwise, you’ll just have to drool over the photos like the rest of us.
via Bike EXIF http://www.bikeexif.com
July 12, 2018 at 12:08PM