If you are determined you can ride up a lot more that a couple of hundred yards. I managed to ride most of the middle and took just under 2 hours to get to the top. I do remember carrying my bike a long way as well though just after the start and then at the end.
The descent is brilliant, even with no front brake. :mrgreen:. Rode the whole thing bar one rocky bit near the bottom. Even saw my first adder in the wild as it had no time to hide against a bike tanking down a hill. It still managed to leg it before I had my camera out 🙁