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* Boasting Full-Coverage One-Piece Heat Shields
* Machined step to 1-1/4" for stock risers
Evolution Industries Is The Innovator and Manufacturer Of The 10-84 Gear Set That Provides 15% More Torque For Starting High Compression and Large Displacement Engines
* Forward control applications use part # PE-77706
5 gallon tanks
+.010in. Flat Top Pistons with 9.0:1 Compression Ratio. Fits Sportster 1986-2021 with 1200cc Engine & Sportster 1986-1987 with 1100cc Engine. COB-501-2110B * Boasting Full-Coverage One-Piece HeatFeatures & Benefits: * Bore = 3. 508" * Stroke = 3. 812" * 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