This route uses the Bwch-y-Groes(pass of the cross)this was the test route for most of the old British bike manufacturers,to test 'hill climbing abilities' its easy on a modern bike though. There is one double hairpin at the bottom of the hill and its mostly 'single track' road. Used a lot on the Nick Sanders motochallenge series. A must to see Wales highest mountain pass.
A nice, varied and technical run with a few different sections. It's tight and twisty going up, more flowing after the ascent, then tight and twisty again on the way down. Mostly a good surface too
A great road, with good surface, and not much traffic, be aware there are some fairly blind tight corners, but nothing nasty. Best ridden east to west for one of the most outstanding views you'll see in north Wales, though only if the weather is clear. As must ride road.
Loads of slowish corners through Dartmoor. Can sometimes have mud on road due to farm activity, but otherwise good.
I´ve ridden the southern section of this route and it´s excellent; especially the D918 west from Arreau. Arreau itself is a pleasant spot for a teabreak before you set off. There´s also a restaurant on the Col de Tourmalet. A few warnings: There´s a lot of two-wheel folk around, so be aware; keep an eye out for gravel wash in road on the Arreau-Col d´Aspin section and remember to check the cols are open before you set out. Other than that this is an unmissable ride if you´re in the area.