My LR is 12 - 14 miles ( about 30 % of my mileage ) .
I 've only done 15 once and that was in my 53 mile week ( 28 % ) .
my LR is 12 - 14 miles ( about 30 % of my mileage ) and i 've only done 15 once and that was in my 53 mile week ( 28 % ) .