Athena P400485100003 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 1997-2004 Grease Variable speed trigger with reverse

Variable speed trigger with reverse for improved control

The direct-fit design eliminates installation complications while providing long-lasting durability under demanding diesel engine conditions

for a comfortable riding style which will last longer

the vials are fog- and leak-free

and drywall—even on rough-textured surfaces

Athena P400485100003 Standard Bore Cylinder Kit (54mm, 125cc) - Premium 2-Stroke Top End Rebuild Kit with Forged Piston & Gaskets, Compatible with Yamaha YZ125 1997-2004 Grease Variable speed trigger with reverseRESTORE YOUR DIRT BIKE TO PEAK OEM PERFORMANCE Bring back the crisp throttle response, razor sharp power delivery, and high revving factory reliability of your 125cc two stroke engine with the Athena Standard Bore Cylinder Kit (Part No. P400485100003), a premium OEM style replacement package engineered and manufactured in Italy. Entirely cast from high grade aluminum and treated with a specialized Motor Nicksil (Nickel Silicon) coating, this cylinder