Thunder Bike Forged Piston Kits Stroke

Thunder Bike Forged Piston Kits are high-performance piston kits, made of a high-silicone aluminium alloy that has good wear and heat-dissipation properties. They have been redesigned with stock ring lands.

The ring package and CNC-machined anti-detonation grooves elevate this piston to the status of one of the most technologically advanced on the market.

Kit includes:

• Sets of two pistons
• Rings
• Wrist Pins
• Circlips
• Special head and base gaskets or entire top-end kits, if indicated, are also included in some sets. 

Features:

• Made of a high-silicone aluminium alloy
• Good wear and heat-dissipation properties
• Tight piston-to-wall clearances for quieter operation
• One of the most technically-advanced pistons available
• Designed and manufactured in the USA.

Compatibility:

• 85-94 FX Model
• 91-98 Dyna
• 84-99 Softail
• 85-98 Touring