Vertex 22712B Cast Replica Piston Kit - Standard Bore 53.96mm, Standard Compression riding-apparel-jackets-street The mid torso zips for

The mid torso zips for moderate ventilation can also be opened for additional airflow

Nylon/ spandex top hand provides comfort and flexibility

for Valve Stem Types see above

Works on mini- and full-size motorcycles

5:1 Compression w/ Screamin Eagle Heads)

Vertex 22712B Cast Replica Piston Kit - Standard Bore 53.96mm, Standard Compression riding-apparel-jackets-street The mid torso zips forBore: 53. 96mm Compression: Standard Compression Sizing: Standard Bore All piston skirts are coated with a hi tech Molybdenum Disulphite coating for faster break in time and increased piston life. Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston. Forged Replica pistons are forged from 2618 aluminum for superior strength and durability. Forged High