Never noticed the difference myself except the 20mm were more prone to side wall failures and pinch p'tures; not really problems Ive had in the past or currently now Ive switched back to 23mm.
Never noticed the difference myself except the 20mm were more prone to side wall failures and pinch p'tures; not really problems Ive had in the past or currently now Ive switched back to 23mm.
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