Engine :
Engine Type : V Twin
Cylinders : 2
Engine Stroke : 4-Stroke
Cooling : Air / Oil
Valves : 4
Valves Per Cylinder : 2
Valve Configuration : OHV - Pushrod
Compression Ratio : 10.0:1
Starter : Electric
Fuel Requirements : Regular
Fuel Type : Gas
Transmission:
Transmission Type : Manual
Number Of Speeds : 5
Primary Drive (Rear Wheel) : Belt
Wheels & Tires:
Front Tire (Full Spec) : Diablo Corsa III 120/70 ZR17
Rear Tire (Full Spec) : Diablo Corsa III 180/55 ZR17
Brakes:
Front Brake Type : Hydraulic Disc
Rear Brake Type : Hydraulic Disc
Technical Specifications:
Wheelbase (in/mm) : 52 / 1320
Fuel Capacity (gal/l) : 3.8 / 14.5
2009 Buell Firebolt® XB12R specs
source : http://www.motorcycle.com/specs/buell/sport/2009/firebolt-reg/xb12r.html