20 mile round trip (West London to East London) 4 days a week. 34 mins is the best time I've done one way (very early in the morning, but I do stop at the lights!) but in reality it's more like 45 mins from home to office shower. I have noticed that my day off (Weds) gives me good recovery time: I really feel it in my legs if I happen to do 3 x consecutive days.
EC
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