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YEAR: 2007
MAKE: Honda
MODEL: Shadow Aero
Average US MPG (mostly City: 55
Average L/100km (mostly Highway): 4.27
Fuel Capacity (US Gal/Liters): 3.7g/14L total, 0.9g/3.4L reserve
Engine Size/Cylinders: 750cc / 2
Source: Personal

YEAR: 2002
MAKE: Honda
MODEL: Shadow Spirit VT750DC
Average US MPG (City/Highway if known[/i]): 45/55
Average L/100km (City/Highway if known):
Fuel Capacity (US Gal/Litres if known): 3.65
Engine Size/Cylinders: 750cc/2
Source: Personal


Vince/Hanes Exhaust
K/N Filter (This did a huge difference, went from 45 to 55MPG HWy)
37 teeth rear sprocket

The 37 tooth sprocket did not make a difference in MPG at all, but it made it much better driving in both city/HWy. You actually end up with a better performing bike. Sprocket Specialists baby!

YEAR: 1994
MAKE: Yamaha
MODEL: XV750G Virago
Average L/100km: 5.9 L/100km
Fuel Capacity 14.5L
Engine Size/Cylinders: 749cc / 2
Source: Personal

YEAR: 2006 (I'm pretty sure 06-08 are exactly the same)
MAKE: Yamaha (STAR)
MODEL: Roadliner S (XV19 family)
Engine Type (cc and cylinders): 1854 cc 2 cyl v-twin
Fuel Capacity(US Gal and/or L/100km): 4.5 Gal
Average (US MPG and/or L/100km): 42.7
City (US MPG and/or L/100km): 40
Highway (US MPG and/or L/100km): 46
Source: (Personal, Manufacturer, Magazine) Personal

I drive this bike pretty aggressively, so I'm pretty sure conservative riders will do better

YEAR: 2003
MAKE: Triumph
MODEL: Bonneville T100
Average MPG: 46
Average L/100km:
Fuel Capacity: 4.4/16.6
Engine Size: 790cc
Source: Personal

YEAR: 2003
MAKE: Triumph
MODEL: Bonneville T100 w/sidecar
Average MPG: 41
Average L/100km:
Fuel Capacity: 4.4/16.6
Engine Size: 790cc
Source: Personal

Note: The second T100 is my wife's.

1989 Honda VTR 250 Interceptor

YEAR: 1989
MAKE: Honda
MODEL: VTR 250 Interceptor
Engine Type: 249cc / 2 cyl. V-twin DOHC
Fuel Capacity: 3.4 gal - .6 Reserve - 4.0 Total.
Current Mileage: 45011 MILES!!
Average: 55-60
Best ever was 64 - I think it depends on how much gas you can get into the tank as it is a small tank and you can get air out of the tank but it takes a while!!
City: ?? / Highway:??
Source: Personal

some additional info: These bikes were only brought into the US for 3 years. 88 had a 520 chain set up and 89-90 have 428/128 chains. Common gearing is around 17/51. 88 has bare alum swingarm, two bolt front sprocket, and usual colors of white and blue. 88 & 89 have an "inboard disk" front brake set up!! 89 has usual colors white with teal green/pink. 90 Has all white with some red/blue zigzag graphics and outboard front disk brake setup. 89 & 90 have painted swingarms and single bolt front sprockets.

Quite a unique bike!!

When stock with K&N, 45 - 50MPG. With Supertrapp slip-on exhaust, 50 - 55 MPG. Since Aug. 2009, now mostly averages around 53 MPG city/hwy.

YEAR: 2000
MAKE: Kawasaki
MODEL: ZX-9r E1
Engine Type: 899cc / 4 cyl. DOHC
Fuel Capacity: 5.02 gal - 1.1 Reserve.
Current Mileage: 27,500 @ 17,000 miles/year
Average US MPG (City/Highway if known): 53 (combined)
Average L/100km (City/Highway if known): 4.44 (combined)
US MPG (Highway): 55.24
L/100km (Highway: 4.28
Source: Personal
Range in miles (US) : 266-275, 213 - 221 to reserve

2000 Kawasaki ZX9r E1, K&N air filter, Supertrapp slip on exhaust 13" x 4" 2.5" ID universal model, stock gearing, tires and ignition, valves adjusted, engine maintained and tuned.

YEAR: 2003
MAKE: Kawasaki
MODEL: VN750
Average US MPG (City/Highway if known[/i]): 44/53
Average L/100km (City/Highway if known):
Fuel Capacity (US Gal/Litres if known): 3 gal. (11 L)
Engine Size/Cylinders: 749cc / 2
Source: Personal

YEAR: 2007
MAKE: Yamaha
MODEL: Virago
Average MPG (Combined City/Highway): 80
Average L/100km (City/Highway): ?
Fuel Capacity: 2.5 gal. (? L)
Engine Size/Cylinders: 250cc
Source: Personal

YEAR: 2008
MAKE: Harley Davidson
MODEL: 1200 Sportster Custom
Average MPG : 47
Fuel Capacity: 4.5 gal.
Engine Size/Cylinders: 1200cc
Source: Personal