1The climb
From 29.0 km to 30.1 km
1.1 km · +109 m at 9.5% · 9.1 km/h · 159 bpm, peaking at 168
That climb near Knighton took a heavy toll on your heart rate, which spiked significantly compared to the rest of the ride. Since this was only halfway through, pushing that deep into your range suggests you might find the final kilometres more difficult if you keep meeting these gradients at that intensity.