I just did this absolute beauty of a climb one and a half months ago:
268W average, 2h2m, 70kg rider, 1.5kg gear, 6kg bike, with 2.5kg for water food spares.
Pretty exactly 80kg system on the dot.
Enjoy the climb, it is beautiful. The first few miles are boring out of LC and along the highway. From there, you have great looking switchbacks to tackle. For me, the climb becomes truly majestic after Villaflor, into the pine forest. It can get cold and cloudy up here, as the pines “catch” the clouds and drain them into the ground. This is the main source of fresh water on Tenerife.