Engine and Transmission
2009 Yamaha CRF100F
Displacement: 99cc
Engine Type: air-cooled single-cylinder four-stroke
Bore and Stroke: 53.0mm x 45.0mm
Compression Ratio: 9.4:1
Valve Train: SOHC; two-valve
Induction: 22mm piston-valve carburetor
Ignition: CD
Transmission: Five-speed
Final Drive: #428 chain; 14T/50T
Chassis and Dimensions
2009 Honda CRF100F
Front Suspension: 27.0mm leading-axle Showa fork; 5.2-inch travel
Rear Suspension: Pro-Link Showa single shock; 5.8-inch travel
Front Brake: Drum
Rear Brake: Drum
Front Tire: 2.50-19
Rear Tire: 3.00-16
Rake: 28.50 degrees
Trail: 99.0mm (3.9 inches)
Wheelbase: 49.2 inches
Seat Height: 30.9 inches
Ground Clearance: 10.0 inches
Curb Weight: 174 pounds
Fuel Capacity: 1.3 gallons, including 0.3-gallon reserve
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