1The descent
From 12.9 km to 14.4 km
1.4 km · -5.0% average · 39.7 km/h · 117 bpm, peaking at 127
You took 40 km/h down the Shorthampton descent in the first third of the ride, which is quick for a 5% slope — either you were in a low position or the gradient eased enough to let you build speed without pushing.