JThompson

ENGINE
Engine Type 644cc air-cooled dry-sump single-cylinder four-stroke
Bore and Stroke 100.0mm x 82.0mm
Compression Ratio 8.3:1
Valve Train SOHC; four-valve RFVC
Carburetion 42.5mm diaphragm-type CV
Ignition Solid-state CD with electronic advance
DRIVE TRAIN
Transmission Five-speed
Final Drive #520 O-ring-sealed chain; 15T/45T
CHASSIS / SUSPENSION / BRAKES
Front Suspension 43mm air-adjustable leading-axle Showa cartridge fork with 16-position compression-damping adjustability; 11.6-inch travel
Rear Suspension Pro-Link Showa single-shock with spring-preload, 20- position compression- and 20-position rebound-damping adjustability; 11.0-inch travel
Front Brake Single disc with twin-piston caliper
Rear Brake Single disc
Front Tire 3.00-21
Rear Tire 4.60-18
DIMENSIONS
Rake 27.0 degrees
Trail 102.0mm (4.0 inches)
Wheelbase 57.3 inches
Seat Height 37.0 inches
Ground Clearance 13.0 inches
Dry Weight 324.0 pounds
Fuel Capacity 2.8 gallons, including 0.6-gallon reserve

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