+.020in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Big Twin 1984-1999. BAI-21-0202AEGB Includes Clear and Smoked Optics™

Includes Clear and Smoked Optics™ Shield

* Replaces OEM # 47513-58

Dyna Wide Glide

adds 1/2 Lift to your boards with 1

it’s vacuum-bagged

+.020in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Big Twin 1984-1999. BAI-21-0202AEGB Includes Clear and Smoked Optics™Features & Benefits: * Bore = 3. 518" * Stroke = 4. 250" * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined * Best resistance to cracking in hi comp performance applications * Require . 001" wider piston to wall clearance. * Complete kit includes: two pistons, rings, wrist pins and clips. Tech Tips: * 10. 5: 1 Compression Ratio with 80cc Head Chamber Volume. * Follow Ring End Gap & Piston to Cylinder