Ahhh, du Galibier. Switchback after switchback of asphalt hell. Hell if you're on a bike, but heaven if you're watching the world's best cyclists do the work. For 18 kilometers, a ribbon of pain and lactic acid wobbles and weaves its way up the grotesque, treeless slopes of the great French kingmaker.

Yesterday in Stage 9, between Val-d'lsere and Briancon, the boys on the bikes rolled themselves up not only les col du Galibier and du telegraphe, but also the Beyond Category (HC)-rated Col de l'Iseran climb. Three rated climbs, 159.5 kilometers, more than 4 hours. Lots and lots of opportunities for General Classification (GC) contenders to attack and try to put time into their rivals.

Judgement day.

Clip in sports fans, between the weather and the Amgen Tour of California (TOC), it's going to be a great weekend for cycling in the Bay Area.

Whether you're tackling Mt.Tam on your Saturday morning club ride or comparing yourselves to the pros with a summit of Stage 3's infamous Sierra Hill climb, pack the sunscreen today and leave the rain shell behind.

On Sunday at 1:00 p.m., the TOC starts with the prologue, a 3.0 kilometer time trial from the Ferry building to Coit Tower.