High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steelAccurate rates to within 2%Accuracy and performance Yamaha -- WR 450 F -- (2014, 2013, 2015, 2016, 2011, 2012,...
High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steelAccurate rates to within 2%Accuracy and performance Yamaha -- WR 250 F -- (2001, 2003, 2004, 2002); Yamaha -- WR...