Shirenewton, where's the oxygen

Challenging, with hills. We head out toward Caldicot, then onto Crick before we start the long ascent of Shirenewton, 4 miles and 800 feet.

We then drop down to Usk for coffee before heading back along quieter roads to Langstone and along the dual carriageway back to our start point..

Please bring spare inner tube, helmet, some money for refreshment and yourselves