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875" Housing Material Stainless Steel Units Each Style Mechanical
Long lasting
Product Name Spring Spring Rate 54
Oil pump o-ring kit for Twin Cam models
Hot Cams Camshaft - 4055-2E Yamaha WR 250 / YZ 250 2001-2013 Brand_Athena 875" Housing Material Stainless SteelFeatures Stage 2 is designed for mid to top end gains Adds a 5% 10% power gain Designed and dyno proven in the USA Manufactured by utilizing state of the art valvetrain software CNC machined from 8620 billet, case hardened steel for an exact fit and lobe profile Engineered to be drop in cams, that use stock valve springs (unless otherwise noted). Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams improve throttle
