B4235 Chepstow to Llangym one of my favourites, especially as it's close to the bridge so I always start and finish with it. I think it's on the fish & chip route? B4246 Govilon to Blaenavon B4560 either way (although I prefer going south) Llangynidr to Garnlydan A470 Bronllys to Builth is good if you do it outside the peak traffic times, otherwise you get stuck behind others A4069 Llanadog to Brynamam 'The Black Mountain Road" or the Top Gear road, even at 40mph limit it's still good, be very careful about speeding on it as it's full of bikers so I reckon the chance of unmarked police is higher than most roads "You may also like to try the A479 from Tretower (right turn off the A40 west of Crickhowell) to Bronllys - with a coffee stop at the Honey Cafe at the end as a reward? " I prefer the B4560 through Llangorse; less traffic and twistier. Agree that Honey Cafe is great. A489 climb south out of Newtown Agree about the Llanidloes reservoir road and that if you turn off at Dylife for the moutnain pass to Mach a la Fish & Chip route you miss some good stuff after Staylittle. Obviously Pen-Y-Pass A4086 from Llanberis Lots more that I'm yet to try in the Seven but have done in other cars and on bikes in the past. I know the south better than the north as the latter is more than a day trip from Dorset so I get up there less. Hope that helps