Athena P400485100029 144cc Big Bore Cylinder Kit with Cylinder Head (58mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Yamaha YZ125 1997-2004 Night Dragon while the compact

while the compact

The Stiletto TI14SC-16 is a 14 oz

and serious nighttime visibility-on the trail or the road

especially useful in remote or hard-to-reach areas

Athena P400485100029 144cc Big Bore Cylinder Kit with Cylinder Head (58mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Yamaha YZ125 1997-2004 Night Dragon while the compactUPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low end torque, and unmatched acceleration from your 125cc two stroke racing engine with the Athena Big Bore Cylinder Kit (Part No. P400485100029), a premium race proven package engineered in Italy to seamlessly convert your factory setup into a high revving, high output 144cc powerhouse. Entirely cast from high grade aluminum and treated with a specialized Motor