This is the donor
bike that was used as the basis for the rigid chopper seen
here. Stock specifications
are as follows:
Engine:
Four-stroke, 45 degree Harley-Davidson V-Twin; air-cooled
with pushrod actuated overhead valves; two valves per cylinder.
Displacement:
1203cc
Bore and stroke: 3.5 x 3.8 in.
Compression ratio: 9:1
Carburetor: 40 mm Keihin CV
Exhaust: Free-Breathing 2 into 1 collector
Air Cleaner: Free-Breathing, carbon fiber
cover
Torque: 76 ft. Ibs.
Oil Capacity: 3.0 qts.
Oil Filtration: Screw-on disposable element
Transmission:
Five-speed, constant-mesh
Ratios:
1st Gear: 2.78
2nd Gear: 2.03
3rd Gear: 1.49
4th Gear: 1.22
5th Gear: 1.000
Primary Drive: Triplex chain to wet clutch;
ratio 1.6
Final Drive: Kevlar belt; ratio 2.10
Chassis:
Frame:
Tubular perimeter chrome-moly with Uniplanar powertrain system
Wheelbase: 55 inches
Rake: 25°
Trail: 3.9 inches
Front Suspension: WP ROMA 4054 inverted forks
with adjustable rebound and compression damping
Rear Suspension: Chrome—moly rectangular
tubing swingarm; WP extension type damper with adjustable
compression damping, rebound damping and spring preload
Front Wheel Travel: 4.7 inches
Rear Wheel Travel: 4.9 inches
Front Brake: 340 mm cast iron floating rotor;
six piston Buell P/M caliper with braided stainless steel
line
Rear Brake: 230 mm cast iron rotor; Brembo
caliper
Front Wheel: Cast Marchesini, 3.5 x17
Rear Wheel: Cast Marchesini, 5.0 x17
Front Tire: Dunlop Sportmax Radial 120/70
ZR 17
Rear Tire: Dunlop Sportmax Radial 170/60
ZR 17
Fuel Capacity: 5.0 gallons (including 0.6
gallon reserve)
Mileage per EPA Test Regulations: City 45;
Highway 52
Gross Vehicle Weight Rating: 850 lbs.
Dry Weight: 450 lbs.
Load Capacity: 400 lbs.
Seat Height: 29.5 inches
Ground Clearance: 5.2 inches