Harley Davidson Dyna [2007-2017]-Forged performance piston kit Hub 4.375 "

Description

The piston kit for Harley Davidson Dyna models from 2007 to 2017 is made from a high -quality 4032 aluminum alloy with a low expansion and 11% silicon proportion. This material composition ensures an optimal balance between lightness and strength. Special accumulators between the first and second piston ring improves the sealing and efficiency of the engine. In addition, fine grooves minimize the risk of knocking symptoms at the top of the piston. The piston surfaces are provided with an anti-friction coating to increase the durability and performance.

Content of the kit

• Two high -performance blacksmiths
• Two sets of molybdenum -coated rings made of ductile iron, which are known for their durability and heat resistance
• Piston bolts and safety clips for fastening
• Assembly oil to facilitate installation

Technical specifications

Bore: 4 inches

Hub: 4.375 inches

Compression relationship: 10:1