Quote:
Originally Posted by slob
120/60 is lower profile than 120/70, the second number (height) is a percentage of the first (width). DD racers regularly use (or at least did) 70 profile tyres, both because they’re more commonly stocked and you’re less likely to run off the edge of the tread at extreme lean angles..
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Spot on Slob, when i first started racing I used a 120/60 on my CBR400, this was great for speed of turn in, (but as you rightly said) I paid the price of that in morning practice at Mallory (before they put Edwina's in), I ran off the edge of the rear tyre on the right handers of Lake Esse's at about 90 to 100mph, very painful, although no broken bones, after that I stuck to a 120/70 front.
