Kitaco 181 DoHC engine kit

The top of the SP Takegawa engine range for the small Honda 125. The Super Head 4V+R — 4-valve cylinder head offering the best power characteristics in its category in OHC — is here taken even further thanks to a machining of intake ducts by 5-axis center. Associated with a big bore cylinder 181 cc and a high compression piston, this kit radically transforms the character and performance of the engine. A set designed for pure performance, manufactured with exemplary machining precision.

Highlights

• Cylinder head Super Head 4V+R 4 valves, high precision NC machined combustion chamber
• Intake Ducts machined 5 axes (3D programming) for maximum filling efficiency
• Big bore cylinder 181 cc all ceramic aluminum: durability, waterproofing and heat dissipation
• High compression piston — volumetric ratio 12,5 : 1
• Forged aluminum roller rocker arms: reduced friction, smooth operation
• Variable pitch valve springs (anti-crawl at high revs)
• 10/10D self-decompression camshafts (easy starting) — 15/15D option available
• Intake pipe also machined 5 axes, integrated radiator oil outlet

Technical characteristics

Compatibility

Honda Monkey 125 (JB02)  •  Honda GROM / MSX125 (JC61 and JC75).
⚠️ Check the exact type of your machine before ordering. This kit does not cover other Honda mini bikes (Dax 125, Super Cub C125) or newer Monkey 125s not listed.