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S&S Cycle

S&S Cycle 4" Stroke Flywheel For Harley Twin Cam

Item: P921434
Customer rating is out of 5 stars.
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The flywheels are the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and true… Read More

Current price is from $1,744.95$1,795.95 Price depends on fitment. Select your vehicle to continue.
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Members get up to $102.25 in total value with this purchase.

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Product Details

S&S 4" Stroke Flywheel For Harley Twin Cam

  • 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 1.671" crankpin, increased cross-sectional area for increased crank-pin clamping force
  • Harder material, no thrust washers required, where stock flywheels have thrust washers
  • S&S flywheels have steel gripping the crankpin
  • No welding required
  • Integral mainshafts,consistent balance and precision machining, truer flywheels and less vibration, and eliminates two potential points of weakness
  • Reduced mainshaft deflection at high rpm, less vibration, reduced piston and rod side thrusting, prevents oil pump damage, fully compatible with gear drive cams
  • Capable of higher rpm which allows more available power
  • Includes sprocket bearing race

Made in the USA
Please review this product's fitment notes & exceptions prior to purchase: Add to Cart
Fitment Notes & Exceptions
  • This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only.
This Product Fits
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0 Customer Reviews for All Models
Customer rating is out of 5 stars.
1 Questions & 0 Answers for All Models

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