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- 20mm Performance carb assembly
carbon built up stock cylinder head with our new complete bolt on race head you get a ton more performance and power
-Includes an optional primary clutch removal washer which removes two pounds of weight off the crankshaft resulting in quicker engine response
This item will prevent mud and dirt from reaching the rear shock and air filter
Race Head with larger 25/22mm stainless steel (21-4N material) valves for better flow and increased performance
Race Head V2 Upgrade Kit - GPX/YX150/160 Import Chinese KLX110 - TBW9034 ssr - 20mm Performance carb assemblyTB Parts Performance 170cc 184cc Race Head V2 Upgrade Kit GPX YX150 160 Part Number: TBW9034 Description: 170 184cc Race Head V2 Upgrade Kit: Race Head V2 Roller rockers, 30mm intake valve, 24. 5mm exhaust valve, 27mm intake port, 23mm exhaust port (valves installed). Race Camshaft V2 2 for Race Head V2 64mm head gasket kit includes the cylinder head o ring set and an exhaust gasket. This kit is for YX GPX150 160 engines with our 170cc or 184cc bore