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1998-2001 Polaris Xplorer 400 4x4
2009 Arctic Cat 550 4x4 Auto TRV LE
1979-1981 Honda CX500D Deluxe
2009 Yamaha YFM550 Grizzly FI 4x4 Auto
2014 Polaris RZR S 800 EPS LE
S&S Cycle 320-0459 3-Piece Flywheel - 4 1/2in. Stroke body-gas-tanks-accessories 1998-2001 Polaris Xplorer 400 4x4Without Sproket bearing race Vast improvement over stock flywheels which shift out of true under heavy load. Heat treated 4140 material is 114% stronger than stock, eliminates thrust washer. Larger 1. 671in. crankpin, increased cross sectional area for increased crank pin clamping force. No welding required. Integral mainshafts, truer flywheels and less vibration. Notes: Strokes longer than stock will require S&S piston oiler set #31 2026. 07 up stock
