Stroke77.70mmMain Journal54.965mmRod Journal47.97mmWeight18.80Crank Grade4340 BilletFoot Note Std Stroke / Lightweight Design Technical Features Manufactured from precision steel 4340 Full CNC Machining Multi-stage heat treatment Heat treatment provides excellent wear resistance Mild-flucroping finish for flawless surface wear for flawless wear resistance for flawless wear resistance crankset is balanced on Sunnen 1gr +/- 0.1 machines and ready for fitting. Stroke77.70mmMain Journal54.965mm Rod Journal47.97mmWeight18.80Crank Grade4340 BilletFoot Note Std Stroke / Lightweight Design Technical characteristics of the Manufactured with precise 4340 steelFull CNC heat machiningMulti-steel treatmentHeat treatment treatment provides excellent wear resistanceMagna-flucing for error-free surface finishingShot peening to increase resistance to fatigueMicropolishing for longer bearing life & nbsp