WSM Piston Kit - Standard - Yamaha 50-521P Competition Handlebar — Competition/YFZ Laser-cut (never stamped) design is

Laser-cut (never stamped) design is double-disc parallel ground to ensure perfect flatness

PCX™ (Power Chamber Exhaust) technology

Full carbon sleeve

CNC-machined from a specially enhanced 7075-T6 aluminum alloy

ultra-lightweight flange that bolts tightly onto the airbox to eliminate leaks and provide more air for more powerEach kit contains necessary mounting hardware

WSM Piston Kit - Standard - Yamaha 50-521P Competition Handlebar — Competition/YFZ Laser-cut (never stamped) design isNew light weight design incorporates shorter piston skirts with an PTFE coating at critical wear points for quicker revs and less heat Improved intake skirt with larger inlet ports for increased acceleration and overall performance