London’s “Greatest London Flat” was released with Zwift’s February 1, 2018 update and is the longest “flat” route on the London course. Related Posts Route Basics Length: 23.6 km (14.7 miles) Elevation: 147 m (482‘) Lead-In: 7.5 km (4.7 miles) Map: London Restriction: none Achievement Badge: 500 XP London’s “Greatest London Flat” was released with Zwift’s February 1, 2018 update and is the longest “flat” route on the London course. Related Posts See route detail page, including Strava segments, detailed description, Veloviewer profiles, video ride-thru and more > Related Posts