S&S Cycle
S&S, M8 4-1/2" stroke flywheel assembly
S&S, M8 4-1/2" stroke flywheel assembly
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- With full wristpin width connecting rods for use with S&S pistons - With installed balancer gear. - Comes fully assembled with flywheels; connecting rods; connecting rod bearings; pinion and sprocket shaft. - 4-1/2" Stroke (114ci) - Heat Treated 4140 Material is harder & more than twice as strong as stock - Stronger assembly eliminates need to weld crankpin - S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots - Balanced for S&S Performance piston weight (1213g) - Perfect for Gear Drive Cams - Consistent balance & precision machining - Capable of higher RPM for more available power!
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp Tuesday to Sunday, 11am–7pm.