BIG BORE KIT FOR STOCK CYLINDER HEAD. POWER AND TORQUE INCREASED FOR BIG DISPLACEMENT. TORQUE BECOMES MUCH BETTER AROUND MIDDLE RPM.
※I-MAP (SOLD SEPARATELY) REQUIRED
 
○ALUMINUM HARD CHROME CYLINDER
○DISPLACEMENT：181cc
BORE:φ63
STROKE:57.9mm(STOCK)
○COMPRESSION RATIO:11.1：1