KB Performance Piston Kit - KB263.010 For Harley Motorcycles 1941-1979 Brand_Arai Helmets Designed to fit Harley OEM

Designed to fit Harley OEM dual-style gauges

00 mm Units Kit Model Hi-Performance

The seat platform starts with Saddlemen's proprietary and improved GelCore™ technology

the relief valve is seated and sealed to a minimum of 30 psi with full pop off at 55-60 psi

KB Performance Piston Kit - KB263.010 For Harley Motorcycles 1941-1979 Brand_Arai Helmets Designed to fit Harley OEMFeatures Manufactured from high strength, T 5, heat treated, 390 hypereutectic aluminum alloy Allow a tighter fit and longer piston and ring life Diamond machined pistons are held to plus or minus one gram weight and less than one half thousandth inch (. 0005") tolerances from piston to piston Each kit contains two pistons, pins, spiral lock pin clips and Hastings moly rings Replacement piston rings and pin lock rings available separately KB pistons