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spark and AFR real time cell tracing
* Compression with S&S 76cc Performance Heads = 9
* Sportster 2014-2021 Dual Disc:
* Upgrade on OEM # 42597-00
4-3/8in. Stroke Flywheel Assembly with Timken Bearing Upgrade. Fits Twin Cam Dyna 2007-2017 & Touring 2007-2016. KB348.STD spark and AFR real timeFeatures & Benefits: * Without Sprocket Shaft Race for use with the Timken Bearing Upgrade. * Replaces the Stock Crankshaft in 96ci,103ci & 110ci Engines. * OEM style Tapered Wristpin Ends allow use of OEM Pistons. * 7. 659" length Connecting Rods. * Heat treated 4140 material is harder & stronger than stock. * Harder material eliminates the need for Thrust Washers. * Larger diameter Crankpin provides increased Crank Pin clamping force. * Integral
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