14-18 YAMAHA YZ250F: Cycra Powerflow Plastic Kit (Gold) Champions like motocross great James Stewart use the Cycra Plastic Kit because Cycra made each piece better to improve the performance of your dirt bike. Cycra analyzed the factory plastics and found excess materials being used therefore adding unnecessary weight. Cycra engineered their plastic kit to eliminate unnecessary weight which provides better power output. Strength has been maintained with the use of high-quality injection-molded plastic for the Cycra kit that also produces a high gloss finish. The Cycra Plastic Kit includes: Powerflow Intake Radiator Shrouds, Airbox Cover, Performance Front Fender, Powerflow Rear Fender, Stadium Number Plate, Side Number Panels, and Fork Guards.