Engine Layout/Type   4 Stroke, 45° V2 Air Cooled

Displacement (cc)   1,450

Bore (in)   3.75"

Stroke (in)   4.00"

Compression Ratio   8.8–9.0 to 1

Nominal Peak Torque at rpm
(taken at the crankshaft)
  86 ft-lb at 3,500 rpm, touring
or
82 ft-lb at 3,500 rpm, shorty duals

Bottom End Construction   Straight press fit pin, inline knife and fork rods, needle roller rod bearing and right side main, matched Timken® left side main

Ignition System   Carb – Sequential, non-waste spark, MAP-N control
or
EFI – Sequential, non-waste spark, Alpha-N control

Cam System   Twin cams, chain driven with spring loaded tensioners

Crankcase   Aluminum, vertical split, high-pressure die cast

Cylinders   Aluminum, high-pressure die cast with cast in SPINEY-LOK® cast iron liner, O-ring base seal

Cylinder Head   Aluminum, permanent mold with 85cc bathtub combustion chamber, single 12mm spark plug

Pistons   3-ring, hypereutectic Aluminum cooled by oil jets

Oil system-pump   Twin geroter, dual scavenge, crank mounted and driven internal oil pump, dry sump