Keith Black Pistons KB264.010 +.010" Flat Top Pistons w/9.0:1 Compression Ratio for Sportster 86-21 w/1200cc Engine/Sportster 86-87 w/1100cc Engine D3O® armour comes pre-fitted to

D3O® armour comes pre-fitted to the hips and knees

Features & Benefits:-* 7/8in

• Pockets: 2 outer pockets

• Designed with a smooth tripple chrome finish

• AquaSeal+ Waterproof and Breathable Reinforcement Panels

Keith Black Pistons KB264.010 +.010" Flat Top Pistons w/9.0:1 Compression Ratio for Sportster 86-21 w/1200cc Engine/Sportster 86-87 w/1100cc Engine D3O® armour comes pre-fitted toFeatures & Benefits: * Bore = 3. 508in. * Stroke = 3. 812in. * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter piston to cylinder clearance. * Complete kit includes: two pistons, rings, wrist pins and clips. * Replaces OEM # 22216 88A Tech Tips: * 9. 0: 1 Compression Ratio with 69cc Head Chamber Volume. * Follow Ring End Gap & Piston to Cylinder Clearances as per the