Has anyone ridden with studded tires? And now we're talking tires fitted with metal studs. They have a sale on Michelin AC10 tires with studs for winter and snow on one of the Swedish webshops, but the sizes on offer are 80/100-21 front and 110/100-18 rear. Will the rear tire fit is the question? Or are the studs on the rear tire going to go "Krrrrrrrrrrrrrrrr!!!" on the swingarm when I take off??