The SE2-PRO is packed with more race specific parts to give you the big power you are looking for!

Cylinder: Aluminum cylinder (Hard plating)
Piston: Forging / WPC + MOS2 processing (3R specification)
Displacement: 145cc
Bore Diameter: Φ57
Stroke: 56.5mm (Long stroke)
ULTRA-SE high camshaft (OPTION: ULTRA-SE R High Camshaft 300-1413770)
Valve assembled