Zwift - London - Greatest London Loop Distance: 26.13 km Duration: 0:49:38 Calories: 794.836 Avg power: 280 W Max power: 400 W Avg heart rate: 109 bpm Max heart rate: 141 bpm Elevation gain: 323 m » View on Zwift → 14 February 2021 31 words Rides Written by thechelsuk.