With graphene?
I pondered punctures today as I laboured up the side of Great Knoutberry Hill between Dent Railway Station and Garsdale Head thinking that it would be a long walk back to my car parked in Dent. I first went to Dent 50 years ago (a rich friend owned a second home there!) and then for a few years the wonderful Whernside race was organised by Lyon Equipment. The main road to Dent is from Sedbergh but the route from the south is glorious along a narow road, adjecant to Deepdale Beck and deep in its valley, that includes four road gates that have to be opened (and closed) - so not for those in a rush.
The B6259 from Garsdale Head to Kirkby Stephen is another magical ride. It shares a valley with the Settle-Carlisle railway and the road and railway criss cross and one sees the splendid viaducts (not the hyped Ribblehead) along the way. And the ride back to Sedbergh from Kirkby Stephen has its diversions if you look at an OS map.
And would you believe that a Castle Cement train pulled by a 66XXX pootled by to mark the occasion of my visit? Oh my.
So 35 miles, 2400 feet (but most of them within a couple of miles) on a glorious autumn day.