I'm nowhere near your pace at running Matt but have a 10/11 mile commute to work which I cycle 2 or 3 times a week from March - October. It takes about 35 minutes and I tend to average 16mph. It takes 15 minutes in the car! I get to the gym in lunch breaks and try to run 2 or 3 times a week too 🙂.
I find cycling is enjoyable if the cars/vans/lorries give you enough room, as getting nearly clipped when they're doing 60 isn't much fun 🙁. It was a little cold the other morning when it was 4 degrees (feels like 2 according to the Met Office!), but the nicer weather definitely adds to the pleasure 🙂.