Smoke Ring Challenge

Thames Estuary to Thames Estuary, an anti-clockwise loop around London. 200 miles (322km) and 10,000ft (3,050m). The event will follow �The Smoke Ring _ An orbital route around London�, which is a long-distance off-road MTB/gravel route created and published by MTB Epics UK in 2014. You will encounter a huge array of trail gems over the 200 mile distance, taking in bridleways, byways, singletrack, woodland, heathland, purpose-built MTB trails, urban and more.