dude, u cant compare apples with oranges, honda with chinese it just doesnt work. why do u need top speed any way, i didnt know these bikes are used as drag bikes.
crf specs
Specifications
Model Name:
CRF100F 2006 Model
Engine Type:
99cc air-cooled single-cylinder four-stroke
Bore x Stroke:
53.0mm x 45.0mm
Compression Ratio:
9.4:1
Carburettor(s):
22mm piston-valve
Ignition:
CDI
Transmission:
Five-speed
Final Drive:
#428 chain; 14T/50T
Wheel Base (mm):
1249mm
Seat Height (mm):
775mm
Ground Clearance (mm):
252mm
Fuel Capacity (litres):
5.5 litres, incl. 1.1 litre reserve
Front Tyre:
2.50-19
Rear Tyre:
3.00-16
Front Suspension:
27mm leading-axle Showa fork; 150mm travel
Rear Suspension:
Pro-Link? Showa single-shock; 140mm travel
Front Brakes:
Leading/trailing Drum
Rear Brakes:
Leading/Trailing Drum
Dry Weight (kg):
75
im sure u can find the orion specs on ebay.