I’d echo @ad441, the sections that aren’t overgrown are nice and quick at the moment, but I got a nice coating of dust in about 20 miles of it recently. I haven’t done the whole thing yet, just sections, but a local MTB rider did the double recently and wrote it up here: http://benracesbikes.blogspot.com/2022/07/south-downs-way-double.html?m=1
I’d echo @ad441, the sections that aren’t overgrown are nice and quick at the moment, but I got a nice coating of dust in about 20 miles of it recently. I haven’t done the whole thing yet, just sections, but a local MTB rider did the double recently and wrote it up here: http://benracesbikes.blogspot.com/2022/07/south-downs-way-double.html?m=1