The next milepost towards the TBV Triathalon* has been reached with opening of on-line registration for the Diablo Challenge. One reason to register early is to get placed in an appropriate start wave based on guesstimated finishing time.
To get a good guesstimate, use this Lim calculator and plug in your values, 10.8 miles, and 3270 feet and you'll be pretty close. If you don't have power numbers, use the scale on the right to ballpark your power/weight, and multiply by your weight in KG. If you're an active but sub-Cat 5 like TBV right now, you'll be somewhere between 2.5 and 3 w/kg.
If you're a true couch potato, figure 1.8 to 2.0 W/KG and pack snacks for breaks at South Gate, Junction, and Juniper, because it'll take you a while and you might as well enjoy the day on the mountain.
If you're a 150 lb rider with a 16 lb bike, you need to pull 343 watts to tie the current 45 minute record, and 400 to crush it down to 40 minutes flat. On the Joux-Plane at the end of Stage 17, Landis did 373 watts for 7.3 miles on the 8.5% grade.
We're registered now. If you think you might come, please let us know.
*triathalon, tri-ath-A-lon, n., an unsanctioned semi-sporting event of three disciplines selected by the organizer, with at least one involving real sweat, and another requiring consumption of tasty food and beverage in a social setting. Term originated by Elden Nelson, The Fat Cyclist.