About using front tires on the back, if you run a front on the rear mount it so the directional arrow is reversed. The cords are alined so when on the front the tire is set up for braking, flip the direction for the rear and its set to take power.
Metzler used to give certifacates for tire purchace in AHRMA racing for podium placings.The suitable racing tire range was limited so 200+ 250 size bikes would use soft compound Lazers reversed on the rear It worked pretty good with small bikes,anything to save money for the after race  and long trip home.
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ride,smile,repeat as nessasary
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ride,smile,repeat as nessasary
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