Zwift - London Surrey Hills Distance: 47.22 km Duration: 1:52:36 Calories: 1647.64 Avg power: 256 W Max power: 400 W Avg heart rate: 107 bpm Max heart rate: 129 bpm Elevation gain: 994 m » View on Zwift → 13 February 2021 31 words Rides Written by thechelsuk.